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

dev/alpha_console.cc

@@ -184,7 +184,7 @@ AlphaConsole::read(MemReqPtr &req, uint8_t *data)
             }
             break;
         default:
-            return MachineCheckFault;
+            return new MachineCheckFault;
     }
 
     return NoFault;
@@ -204,7 +204,7 @@ AlphaConsole::write(MemReqPtr &req, const uint8_t *data)
         val = *(uint64_t *)data;
         break;
       default:
-        return MachineCheckFault;
+        return new MachineCheckFault;
     }
 
     Addr daddr = req->paddr - (addr & EV5::PAddrImplMask);
@@ -257,7 +257,7 @@ AlphaConsole::write(MemReqPtr &req, const uint8_t *data)
         break;
 
       default:
-        return MachineCheckFault;
+        return new MachineCheckFault;
     }
 
     return NoFault;

dev/pcidev.hh

@@ -272,7 +272,7 @@ PciDev::readBar(MemReqPtr &req, uint8_t *data)
         return readBar4(req, req->paddr - BARAddrs[4], data);
     if (isBAR(req->paddr, 5))
         return readBar5(req, req->paddr - BARAddrs[5], data);
-    return MachineCheckFault;
+    return new MachineCheckFault;
 }
 
 inline Fault
@@ -290,7 +290,7 @@ PciDev::writeBar(MemReqPtr &req, const uint8_t *data)
         return writeBar4(req, req->paddr - BARAddrs[4], data);
     if (isBAR(req->paddr, 5))
         return writeBar5(req, req->paddr - BARAddrs[5], data);
-    return MachineCheckFault;
+    return new MachineCheckFault;
 }
 
 #endif // __DEV_PCIDEV_HH__

dev/sinic.cc

@@ -363,11 +363,11 @@ Device::read(MemReqPtr &req, uint8_t *data)
     assert(config.command & PCI_CMD_MSE);
     Fault fault = readBar(req, data);
 
-    if (fault == MachineCheckFault) {
+    if (fault->isA<MachineCheckFault>()) {
         panic("address does not map to a BAR pa=%#x va=%#x size=%d",
               req->paddr, req->vaddr, req->size);
 
-        return MachineCheckFault;
+        return new MachineCheckFault;
     }
 
     return fault;
@@ -459,11 +459,11 @@ Device::write(MemReqPtr &req, const uint8_t *data)
     assert(config.command & PCI_CMD_MSE);
     Fault fault = writeBar(req, data);
 
-    if (fault == MachineCheckFault) {
+    if (fault->isA<MachineCheckFault>()) {
         panic("address does not map to a BAR pa=%#x va=%#x size=%d",
               req->paddr, req->vaddr, req->size);
 
-        return MachineCheckFault;
+        return new MachineCheckFault;
     }
 
     return fault;
@@ -489,12 +489,17 @@ Device::writeBar0(MemReqPtr &req, Addr daddr, const uint8_t *data)
         panic("invalid size for %s: cpu=%d da=%#x pa=%#x va=%#x size=%d",
               info.name, cpu, daddr, req->paddr, req->vaddr, req->size);
 
+    //These are commmented out because when the DPRINTF below isn't used,
+    //these values aren't used and gcc issues a warning. With -Werror,
+    //this prevents compilation.
     //uint32_t reg32 = *(uint32_t *)data;
-    uint64_t reg64 = *(uint64_t *)data;
+    //uint64_t reg64 = *(uint64_t *)data;
     DPRINTF(EthernetPIO,
             "write %s: cpu=%d val=%#x da=%#x pa=%#x va=%#x size=%d\n",
-            info.name, cpu, info.size == 4 ? (*(uint32_t *)data) : reg64, daddr,
-            req->paddr, req->vaddr, req->size);
+            info.name, cpu, info.size == 4 ?
+            (*(uint32_t *)data) :
+            (*(uint32_t *)data),
+            daddr, req->paddr, req->vaddr, req->size);
 
     prepareWrite(cpu, index);