faults.hh revision 2665
11689SN/A/* 22326SN/A * Copyright (c) 2003-2005 The Regents of The University of Michigan 31689SN/A * All rights reserved. 41689SN/A * 51689SN/A * Redistribution and use in source and binary forms, with or without 61689SN/A * modification, are permitted provided that the following conditions are 71689SN/A * met: redistributions of source code must retain the above copyright 81689SN/A * notice, this list of conditions and the following disclaimer; 91689SN/A * redistributions in binary form must reproduce the above copyright 101689SN/A * notice, this list of conditions and the following disclaimer in the 111689SN/A * documentation and/or other materials provided with the distribution; 121689SN/A * neither the name of the copyright holders nor the names of its 131689SN/A * contributors may be used to endorse or promote products derived from 141689SN/A * this software without specific prior written permission. 151689SN/A * 161689SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 171689SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 181689SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 191689SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 201689SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 211689SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 221689SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 231689SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 241689SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 251689SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 261689SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Nathan Binkert 291689SN/A * Gabe Black 301689SN/A */ 311060SN/A 321060SN/A#ifndef __FAULTS_HH__ 331689SN/A#define __FAULTS_HH__ 341060SN/A 351060SN/A#include "base/refcnt.hh" 361060SN/A#include "sim/stats.hh" 371060SN/A#include "config/full_system.hh" 382292SN/A 391717SN/Aclass ExecContext; 401060SN/Aclass FaultBase; 412292SN/Atypedef RefCountingPtr<FaultBase> Fault; 421681SN/A 431681SN/Atypedef const char * FaultName; 442292SN/Atypedef Stats::Scalar<> FaultStat; 452326SN/A 461061SN/A// Each class has it's name statically define in _name, 471060SN/A// and has a virtual function to access it's name. 481061SN/A// The function is necessary because otherwise, all objects 492292SN/A// which are being accessed cast as a FaultBase * (namely 502292SN/A// all faults returned using the Fault type) will use the 512292SN/A// generic FaultBase name. 522292SN/A 532820Sktlim@umich.educlass FaultBase : public RefCounted 542292SN/A{ 552820Sktlim@umich.edu public: 562820Sktlim@umich.edu virtual FaultName name() = 0; 572307SN/A#if FULL_SYSTEM 582307SN/A virtual void invoke(ExecContext * xc); 591060SN/A#else 602292SN/A virtual void invoke(ExecContext * xc); 612292SN/A#endif 622292SN/A// template<typename T> 631060SN/A// bool isA() {return dynamic_cast<T *>(this);} 641060SN/A virtual bool isMachineCheckFault() {return false;} 651060SN/A virtual bool isAlignmentFault() {return false;} 661060SN/A}; 671060SN/A 681060SN/AFaultBase * const NoFault = 0; 691681SN/A 702292SN/Aclass UnimpFault : public FaultBase 711681SN/A{ 722292SN/A private: 732292SN/A std::string panicStr; 742292SN/A public: 752292SN/A UnimpFault(std::string _str) 762292SN/A : panicStr(_str) 772292SN/A { } 782292SN/A 792820Sktlim@umich.edu FaultName name() {return "Unimplemented simulator feature";} 802820Sktlim@umich.edu void invoke(ExecContext * xc); 812292SN/A}; 822292SN/A 832820Sktlim@umich.edu#endif // __FAULTS_HH__ 842820Sktlim@umich.edu