faults.hh revision 2612
11142Shsul@eecs.umich.edu/* 21142Shsul@eecs.umich.edu * Copyright (c) 2003-2005 The Regents of The University of Michigan 31142Shsul@eecs.umich.edu * All rights reserved. 41142Shsul@eecs.umich.edu * 51142Shsul@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 61142Shsul@eecs.umich.edu * modification, are permitted provided that the following conditions are 71242Ssaidi@eecs.umich.edu * met: redistributions of source code must retain the above copyright 81142Shsul@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 91142Shsul@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 101142Shsul@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 111142Shsul@eecs.umich.edu * documentation and/or other materials provided with the distribution; 121142Shsul@eecs.umich.edu * neither the name of the copyright holders nor the names of its 131142Shsul@eecs.umich.edu * contributors may be used to endorse or promote products derived from 141142Shsul@eecs.umich.edu * this software without specific prior written permission. 151142Shsul@eecs.umich.edu * 161142Shsul@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 171142Shsul@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 181142Shsul@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 191142Shsul@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 201142Shsul@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 211648Sbinkertn@umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 221142Shsul@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 231142Shsul@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 241142Shsul@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 251142Shsul@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 261645Srdreslin@umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 271142Shsul@eecs.umich.edu */ 281142Shsul@eecs.umich.edu 291142Shsul@eecs.umich.edu#ifndef __FAULTS_HH__ 301142Shsul@eecs.umich.edu#define __FAULTS_HH__ 311142Shsul@eecs.umich.edu 321142Shsul@eecs.umich.edu#include "base/refcnt.hh" 331142Shsul@eecs.umich.edu#include "sim/stats.hh" 341196Shsul@eecs.umich.edu#include "config/full_system.hh" 353032Shsul@eecs.umich.edu 361142Shsul@eecs.umich.educlass ExecContext; 371142Shsul@eecs.umich.educlass FaultBase; 384388Shsul@eecs.umich.edutypedef RefCountingPtr<FaultBase> Fault; 391142Shsul@eecs.umich.edu 401142Shsul@eecs.umich.edutypedef const char * FaultName; 411142Shsul@eecs.umich.edutypedef Stats::Scalar<> FaultStat; 421142Shsul@eecs.umich.edu 431142Shsul@eecs.umich.edu// Each class has it's name statically define in _name, 441142Shsul@eecs.umich.edu// and has a virtual function to access it's name. 451142Shsul@eecs.umich.edu// The function is necessary because otherwise, all objects 46// which are being accessed cast as a FaultBase * (namely 47// all faults returned using the Fault type) will use the 48// generic FaultBase name. 49 50class FaultBase : public RefCounted 51{ 52 public: 53 virtual FaultName name() = 0; 54#if FULL_SYSTEM 55 virtual void invoke(ExecContext * xc); 56#else 57 virtual void invoke(ExecContext * xc); 58#endif 59// template<typename T> 60// bool isA() {return dynamic_cast<T *>(this);} 61 virtual bool isMachineCheckFault() {return false;} 62 virtual bool isAlignmentFault() {return false;} 63}; 64 65FaultBase * const NoFault = 0; 66 67class UnimpFault : public FaultBase 68{ 69 private: 70 std::string panicStr; 71 public: 72 UnimpFault(std::string _str) 73 : panicStr(_str) 74 { } 75 76 FaultName name() {return "Unimplemented simulator feature";} 77 void invoke(ExecContext * xc); 78}; 79 80#endif // __FAULTS_HH__ 81