summaryrefslogtreecommitdiff
path: root/src/sim/faults.hh
diff options
context:
space:
mode:
Diffstat (limited to 'src/sim/faults.hh')
-rw-r--r--src/sim/faults.hh80
1 files changed, 80 insertions, 0 deletions
diff --git a/src/sim/faults.hh b/src/sim/faults.hh
new file mode 100644
index 000000000..9b3bc9103
--- /dev/null
+++ b/src/sim/faults.hh
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2003-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __FAULTS_HH__
+#define __FAULTS_HH__
+
+#include "base/refcnt.hh"
+#include "sim/stats.hh"
+#include "config/full_system.hh"
+
+class ExecContext;
+class FaultBase;
+typedef RefCountingPtr<FaultBase> Fault;
+
+typedef const char * FaultName;
+typedef Stats::Scalar<> FaultStat;
+
+// Each class has it's name statically define in _name,
+// and has a virtual function to access it's name.
+// The function is necessary because otherwise, all objects
+// which are being accessed cast as a FaultBase * (namely
+// all faults returned using the Fault type) will use the
+// generic FaultBase name.
+
+class FaultBase : public RefCounted
+{
+ public:
+ virtual FaultName name() = 0;
+#if FULL_SYSTEM
+ virtual void invoke(ExecContext * xc);
+#else
+ virtual void invoke(ExecContext * xc);
+#endif
+// template<typename T>
+// bool isA() {return dynamic_cast<T *>(this);}
+ virtual bool isMachineCheckFault() {return false;}
+ virtual bool isAlignmentFault() {return false;}
+};
+
+FaultBase * const NoFault = 0;
+
+class UnimpFault : public FaultBase
+{
+ private:
+ std::string panicStr;
+ public:
+ UnimpFault(std::string _str)
+ : panicStr(_str)
+ { }
+
+ FaultName name() {return "Unimplemented simulator feature";}
+ void invoke(ExecContext * xc);
+};
+
+#endif // __FAULTS_HH__