From 08637efadc40a1003d68bba91dedb007fe10798c Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Fri, 24 Feb 2006 01:51:45 -0500
Subject: Changed Fault from a FaultBase * to a RefCountingPtr, added "new"s
 where appropriate, and took away the constant examples of each fault which
 where for comparing to a fault to determine its type.

arch/alpha/alpha_memory.cc:
arch/alpha/isa/decoder.isa:
    Added news where faults are created.
arch/alpha/ev5.cc:
    Changed places where a fault was compared to a fault type to use isA rather than ==
arch/alpha/faults.cc:
arch/alpha/faults.hh:
    Changed Fault to be a RefCountingPtr
arch/alpha/isa/fp.isa:
    Added a new where a FloatEnableFault was created.
arch/alpha/isa/unimp.isa:
arch/alpha/isa/unknown.isa:
    Added a new where an UnimplementedFault is created.
base/refcnt.hh:
    Added include of stddef.h for the NULL macro
cpu/base_dyn_inst.cc:
    Added a new where an UnimplementedOpcodeFault is created.
cpu/o3/alpha_cpu_impl.hh:
    Changed places where a fault was compared to a fault type to use isA rather than ==. Also changed fault->name to fault->name()
cpu/o3/regfile.hh:
    Added new where UnimplementedOpcodeFaults are created.
cpu/simple/cpu.cc:
    Changed places where a fault was compared to a fault type to use isA rather than ==. Also added a new where an Interrupt fault is created.
dev/alpha_console.cc:
    Added news where MachineCheckFaults are created.
dev/pcidev.hh:
    Added news where MachineCheckFaults are generated.
dev/sinic.cc:
    Changed places where a fault was compared to a fault type to use isA rather than ==. Added news where MachineCheckFaults are created. Fixed a problem where m5.fast had unused variables.
kern/kernel_stats.cc:
    Commented out where _faults is initialized. This statistic will probably be moved elsewhere in the future.
kern/kernel_stats.hh:
    Commented out the declaration of _fault. when fault() is called, the fault increments its own stat.
sim/faults.cc:
sim/faults.hh:
    Changed Fault from a FaultBase * to a RefCountingPtr.

--HG--
extra : convert_revision : b40ccfc42482d5a115e111dd897fa378d23c6c7d
---
 sim/faults.cc |  9 ++++-----
 sim/faults.hh | 59 ++++++++++++++++++++++++++++++++++++++++-------------------
 2 files changed, 44 insertions(+), 24 deletions(-)

(limited to 'sim')

diff --git a/sim/faults.cc b/sim/faults.cc
index 58a631263..17efaf1c4 100644
--- a/sim/faults.cc
+++ b/sim/faults.cc
@@ -28,9 +28,8 @@
 
 #include "sim/faults.hh"
 
-NoFaultType * const NoFault = new NoFaultType("none");
-MachineCheckFaultType * const MachineCheckFault =
-    new MachineCheckFaultType("mchk");
-AlignmentFaultType * const AlignmentFault =
-    new AlignmentFaultType("unalign");
+FaultName MachineCheckFault::_name = "mchk";
+FaultStat MachineCheckFault::_stat;
+FaultName AlignmentFault::_name = "unalign";
+FaultStat AlignmentFault::_stat;
 
diff --git a/sim/faults.hh b/sim/faults.hh
index dbec399af..ea2e21a7d 100644
--- a/sim/faults.hh
+++ b/sim/faults.hh
@@ -29,34 +29,55 @@
 #ifndef __FAULTS_HH__
 #define __FAULTS_HH__
 
+#include "base/refcnt.hh"
+#include "sim/stats.hh"
+
 class FaultBase;
-typedef FaultBase * Fault;
+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
+class FaultBase : public RefCounted
 {
-public:
-        FaultBase(char * newName, int newId = 0) : name(newName), id(newId) {;}
-        const char * name;
-        int id;
+  public:
+    virtual FaultName name()
+    {
+        return "none";
+    }
+    virtual FaultStat & stat() = 0;
+    template<typename T>
+    bool isA() {return dynamic_cast<T *>(this);}
 };
 
-extern class NoFaultType : public FaultBase
-{
-public:
-        NoFaultType(char * newName) : FaultBase(newName) {;}
-} * const NoFault;
+static FaultBase * const NoFault __attribute__ ((unused)) = 0;
 
-extern class MachineCheckFaultType : public FaultBase
+class MachineCheckFault : public FaultBase
 {
-public:
-        MachineCheckFaultType(char * newName) : FaultBase(newName) {;}
-} * const MachineCheckFault;
+  private:
+    static FaultName _name;
+    static FaultStat _stat;
+  public:
+    FaultName name() {return _name;}
+    FaultStat & stat() {return _stat;}
+};
 
-extern class AlignmentFaultType : public FaultBase
+class AlignmentFault : public FaultBase
 {
-public:
-        AlignmentFaultType(char * newName) : FaultBase(newName) {;}
-} * const AlignmentFault;
+  private:
+    static FaultName _name;
+    static FaultStat _stat;
+  public:
+    FaultName name() {return _name;}
+    FaultStat & stat() {return _stat;}
+};
 
 
 #endif // __FAULTS_HH__
-- 
cgit v1.2.3