misc: Add explicit overrides and fix other clang >= 3.5 issues

This patch adds explicit overrides as this is now required when using
"-Wall" with clang >= 3.5, the latter now part of the most recent
XCode. The patch consequently removes "virtual" for those methods
where "override" is added. The latter should be enough of an
indication.

As part of this patch, a few minor issues that clang >= 3.5 complains
about are also resolved (unused methods and variables).

5 files changed, 19 insertions, 19 deletions

diff --git a/src/dev/alpha/backdoor.hh b/src/dev/alpha/backdoor.hh
index 59d800863..7dd369aaf 100644
--- a/src/dev/alpha/backdoor.hh
+++ b/src/dev/alpha/backdoor.hh
@@ -107,13 +107,13 @@ class AlphaBackdoor : public BasicPioDevice
         return dynamic_cast<const Params *>(_params);
     }
 
-    virtual void startup();
+    void startup() override;
 
     /**
      * memory mapped reads and writes
      */
-    virtual Tick read(PacketPtr pkt);
-    virtual Tick write(PacketPtr pkt);
+    Tick read(PacketPtr pkt) override;
+    Tick write(PacketPtr pkt) override;
 
     /**
      * standard serialization routines for checkpointing
diff --git a/src/dev/alpha/tsunami.hh b/src/dev/alpha/tsunami.hh
index 9972ecc95..c43f0e023 100644
--- a/src/dev/alpha/tsunami.hh
+++ b/src/dev/alpha/tsunami.hh
@@ -80,7 +80,7 @@ class Tsunami : public Platform
     int intr_sum_type[Tsunami::Max_CPUs];
     int ipi_pending[Tsunami::Max_CPUs];
 
-    void init();
+    void init() override;
 
   public:
     typedef TsunamiParams Params;
@@ -89,40 +89,40 @@ class Tsunami : public Platform
     /**
      * Cause the cpu to post a serial interrupt to the CPU.
      */
-    virtual void postConsoleInt();
+    void postConsoleInt() override;
 
     /**
      * Clear a posted CPU interrupt (id=55)
      */
-    virtual void clearConsoleInt();
+    void clearConsoleInt() override;
 
     /**
      * Cause the chipset to post a cpi interrupt to the CPU.
      */
-    virtual void postPciInt(int line);
+    void postPciInt(int line) override;
 
     /**
      * Clear a posted PCI->CPU interrupt
      */
-    virtual void clearPciInt(int line);
+    void clearPciInt(int line) override;
 
 
-    virtual Addr pciToDma(Addr pciAddr) const;
+    Addr pciToDma(Addr pciAddr) const override;
 
     /**
      * Calculate the configuration address given a bus/dev/func.
      */
-    virtual Addr calcPciConfigAddr(int bus, int dev, int func);
+    Addr calcPciConfigAddr(int bus, int dev, int func) override;
 
     /**
      * Calculate the address for an IO location on the PCI bus.
      */
-    virtual Addr calcPciIOAddr(Addr addr);
+    Addr calcPciIOAddr(Addr addr) override;
 
     /**
      * Calculate the address for a memory location on the PCI bus.
      */
-    virtual Addr calcPciMemAddr(Addr addr);
+    Addr calcPciMemAddr(Addr addr) override;
 
     void serialize(CheckpointOut &cp) const override;
     void unserialize(CheckpointIn &cp) override;
diff --git a/src/dev/alpha/tsunami_cchip.hh b/src/dev/alpha/tsunami_cchip.hh
index 45834f9ea..b6ddd49bd 100644
--- a/src/dev/alpha/tsunami_cchip.hh
+++ b/src/dev/alpha/tsunami_cchip.hh
@@ -92,9 +92,9 @@ class TsunamiCChip : public BasicPioDevice
         return dynamic_cast<const Params *>(_params);
     }
 
-    virtual Tick read(PacketPtr pkt);
+    Tick read(PacketPtr pkt) override;
 
-    virtual Tick write(PacketPtr pkt);
+    Tick write(PacketPtr pkt) override;
 
     /**
      * post an RTC interrupt to the CPU
diff --git a/src/dev/alpha/tsunami_io.hh b/src/dev/alpha/tsunami_io.hh
index e1b05abe8..d7fac22e4 100644
--- a/src/dev/alpha/tsunami_io.hh
+++ b/src/dev/alpha/tsunami_io.hh
@@ -123,8 +123,8 @@ class TsunamiIO : public BasicPioDevice
         return dynamic_cast<const Params *>(_params);
     }
 
-    virtual Tick read(PacketPtr pkt);
-    virtual Tick write(PacketPtr pkt);
+    Tick read(PacketPtr pkt) override;
+    Tick write(PacketPtr pkt) override;
 
     /**
      * Post an PIC interrupt to the CPU via the CChip
@@ -144,7 +144,7 @@ class TsunamiIO : public BasicPioDevice
     /**
      * Start running.
      */
-    virtual void startup();
+    void startup() override;
 
 };
 
diff --git a/src/dev/alpha/tsunami_pchip.hh b/src/dev/alpha/tsunami_pchip.hh
index e37292d57..68bd20e9a 100644
--- a/src/dev/alpha/tsunami_pchip.hh
+++ b/src/dev/alpha/tsunami_pchip.hh
@@ -86,8 +86,8 @@ class TsunamiPChip : public BasicPioDevice
     Addr calcIOAddr(Addr addr);
     Addr calcMemAddr(Addr addr);
 
-    virtual Tick read(PacketPtr pkt);
-    virtual Tick write(PacketPtr pkt);
+    Tick read(PacketPtr pkt) override;
+    Tick write(PacketPtr pkt) override;
 
     void serialize(CheckpointOut &cp) const override;
     void unserialize(CheckpointIn &cp) override;