sim_events.cc revision 11793
1/* 2 * Copyright (c) 2013 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Copyright (c) 2002-2005 The Regents of The University of Michigan 15 * Copyright (c) 2013 Advanced Micro Devices, Inc. 16 * Copyright (c) 2013 Mark D. Hill and David A. Wood 17 * All rights reserved. 18 * 19 * Redistribution and use in source and binary forms, with or without 20 * modification, are permitted provided that the following conditions are 21 * met: redistributions of source code must retain the above copyright 22 * notice, this list of conditions and the following disclaimer; 23 * redistributions in binary form must reproduce the above copyright 24 * notice, this list of conditions and the following disclaimer in the 25 * documentation and/or other materials provided with the distribution; 26 * neither the name of the copyright holders nor the names of its 27 * contributors may be used to endorse or promote products derived from 28 * this software without specific prior written permission. 29 * 30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 31 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 32 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 33 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 34 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 35 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 36 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 37 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 38 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 39 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 40 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 41 * 42 * Authors: Nathan Binkert 43 */ 44 45#include "sim/sim_events.hh" 46 47#include <string> 48 49#include "base/callback.hh" 50#include "base/hostinfo.hh" 51#include "sim/eventq_impl.hh" 52#include "sim/sim_exit.hh" 53#include "sim/stats.hh" 54 55using namespace std; 56 57GlobalSimLoopExitEvent::GlobalSimLoopExitEvent(Tick when, 58 const std::string &_cause, 59 int c, Tick r) 60 : GlobalEvent(when, Sim_Exit_Pri, IsExitEvent), 61 cause(_cause), code(c), repeat(r) 62{ 63} 64 65const char * 66GlobalSimLoopExitEvent::description() const 67{ 68 return "global simulation loop exit"; 69} 70 71// 72// handle termination event 73// 74void 75GlobalSimLoopExitEvent::process() 76{ 77 if (repeat) { 78 schedule(curTick() + repeat); 79 } 80} 81 82void 83exitSimLoop(const std::string &message, int exit_code, Tick when, Tick repeat, 84 bool serialize) 85{ 86 warn_if(serialize && (when != curTick() || repeat), 87 "exitSimLoop called with a delay and auto serialization. This is " 88 "currently unsupported."); 89 90 new GlobalSimLoopExitEvent(when + simQuantum, message, exit_code, repeat); 91} 92 93LocalSimLoopExitEvent::LocalSimLoopExitEvent(const std::string &_cause, int c, 94 Tick r) 95 : Event(Sim_Exit_Pri, IsExitEvent), 96 cause(_cause), code(c), repeat(r) 97{ 98} 99 100// 101// handle termination event 102// 103void 104LocalSimLoopExitEvent::process() 105{ 106 exitSimLoop(cause, 0); 107} 108 109 110const char * 111LocalSimLoopExitEvent::description() const 112{ 113 return "simulation loop exit"; 114} 115 116void 117LocalSimLoopExitEvent::serialize(CheckpointOut &cp) const 118{ 119 Event::serialize(cp); 120 121 SERIALIZE_SCALAR(cause); 122 SERIALIZE_SCALAR(code); 123 SERIALIZE_SCALAR(repeat); 124} 125 126void 127LocalSimLoopExitEvent::unserialize(CheckpointIn &cp) 128{ 129 Event::unserialize(cp); 130 131 UNSERIALIZE_SCALAR(cause); 132 UNSERIALIZE_SCALAR(code); 133 UNSERIALIZE_SCALAR(repeat); 134} 135 136// 137// constructor: automatically schedules at specified time 138// 139CountedExitEvent::CountedExitEvent(const std::string &_cause, int &counter) 140 : Event(Sim_Exit_Pri), cause(_cause), downCounter(counter) 141{ 142 // catch stupid mistakes 143 assert(downCounter > 0); 144} 145 146 147// 148// handle termination event 149// 150void 151CountedExitEvent::process() 152{ 153 if (--downCounter == 0) { 154 exitSimLoop(cause, 0); 155 } 156} 157 158 159const char * 160CountedExitEvent::description() const 161{ 162 return "counted exit"; 163} 164