2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * Authors: Nathan Binkert
35 #include "base/refcnt.hh"
36 #include "base/types.hh"
37 #include "config/full_system.hh"
38 #include "cpu/static_inst.hh"
39 #include "sim/fault_fwd.hh"
40 #include "sim/stats.hh"
44 typedef const char * FaultName;
45 typedef Stats::Scalar FaultStat;
47 // Each class has it's name statically define in _name,
48 // and has a virtual function to access it's name.
49 // The function is necessary because otherwise, all objects
50 // which are being accessed cast as a FaultBase * (namely
51 // all faults returned using the Fault type) will use the
52 // generic FaultBase name.
54 class FaultBase : public RefCounted
57 virtual FaultName name() const = 0;
58 virtual void invoke(ThreadContext * tc,
59 StaticInstPtr inst = StaticInst::nullStaticInstPtr);
62 class UnimpFault : public FaultBase
67 UnimpFault(std::string _str)
71 FaultName name() const {return "Unimplemented simulator feature";}
72 void invoke(ThreadContext * tc,
73 StaticInstPtr inst = StaticInst::nullStaticInstPtr);
76 class ReExec : public FaultBase
79 virtual FaultName name() const { return "Re-execution fault";}
81 void invoke(ThreadContext *tc,
82 StaticInstPtr inst = StaticInst::nullStaticInstPtr);
85 class GenericPageTableFault : public FaultBase
90 FaultName name() const {return "Generic page table fault";}
91 GenericPageTableFault(Addr va) : vaddr(va) {}
92 void invoke(ThreadContext * tc,
93 StaticInstPtr inst = StaticInst::nullStaticInstPtr);
96 class GenericAlignmentFault : public FaultBase
101 FaultName name() const {return "Generic alignment fault";}
102 GenericAlignmentFault(Addr va) : vaddr(va) {}
103 void invoke(ThreadContext * tc,
104 StaticInstPtr inst = StaticInst::nullStaticInstPtr);
107 #endif // __FAULTS_HH__