arm: Add missing explicit overrides for ARM devices

Make clang >= 3.5 happy when compiling build/ARM/gem5.opt on OSX.

src/dev/arm/energy_ctrl.hh

@@ -124,19 +124,19 @@ class EnergyCtrl : public BasicPioDevice
      * @param pkt Packet describing this request
      * @return number of ticks it took to complete
      */
-    virtual Tick read(PacketPtr pkt);
+    Tick read(PacketPtr pkt) override;
     /**
      * Write command sent to the device
      * @param pkt Packet describing this request
      * @return number of ticks it took to complete
      */
-    virtual Tick write(PacketPtr pkt);
+    Tick write(PacketPtr pkt) override;
 
     void serialize(CheckpointOut &cp) const override;
     void unserialize(CheckpointIn &cp) override;
 
-    void startup();
-    void init();
+    void startup() override;
+    void init() override;
 
   private:
     DVFSHandler *dvfsHandler;

src/dev/arm/flash_device.hh

@@ -107,18 +107,19 @@ class FlashDevice : public AbstractNVM
     };
 
     /** Device access functions Inherrited from AbstractNVM*/
-    virtual void initializeMemory(uint64_t disk_size, uint32_t sector_size)
+    void initializeMemory(uint64_t disk_size, uint32_t sector_size) override
     {
         initializeFlash(disk_size, sector_size);
     }
 
-    virtual void readMemory(uint64_t address, uint32_t amount,
-                            Callback *event)
+    void readMemory(uint64_t address, uint32_t amount,
+                    Callback *event) override
     {
         accessDevice(address, amount, event, ActionRead);
     }
-    virtual void writeMemory(uint64_t address, uint32_t amount,
-                             Callback *event)
+
+    void writeMemory(uint64_t address, uint32_t amount,
+                     Callback *event) override
     {
         accessDevice(address, amount, event, ActionWrite);
     }
@@ -146,7 +147,7 @@ class FlashDevice : public AbstractNVM
     bool getUnknownPages(uint32_t index);
 
     /**Stats register function*/
-    void regStats();
+    void regStats() override;
 
     /** Disk sizes in bytes */
     uint64_t diskSize;

src/dev/arm/gic_pl390.hh

@@ -260,17 +260,17 @@ class Pl390 : public BaseGic
     /** Return the address ranges used by the Gic
      * This is the distributor address + all cpu addresses
      */
-    virtual AddrRangeList getAddrRanges() const;
+    AddrRangeList getAddrRanges() const override;
 
     /** A PIO read to the device, immediately split up into
      * readDistributor() or readCpu()
      */
-    virtual Tick read(PacketPtr pkt);
+    Tick read(PacketPtr pkt) override;
 
     /** A PIO read to the device, immediately split up into
      * writeDistributor() or writeCpu()
      */
-    virtual Tick write(PacketPtr pkt);
+    Tick write(PacketPtr pkt) override;
     /** @} */
 
     /** @{ */
@@ -278,18 +278,18 @@ class Pl390 : public BaseGic
      * Depending on the configuration, the gic will pass this interrupt
      * on through to a CPU.
      * @param number number of interrupt to send */
-    void sendInt(uint32_t number);
+    void sendInt(uint32_t number) override;
 
     /** Interface call for private peripheral interrupts  */
-    void sendPPInt(uint32_t num, uint32_t cpu);
+    void sendPPInt(uint32_t num, uint32_t cpu) override;
 
     /** Clear an interrupt from a device that is connected to the Gic
      * Depending on the configuration, the gic may de-assert it's cpu line
      * @param number number of interrupt to send */
-    void clearInt(uint32_t number);
+    void clearInt(uint32_t number) override;
 
     /** Clear a (level-sensitive) PPI */
-    void clearPPInt(uint32_t num, uint32_t cpu);
+    void clearPPInt(uint32_t num, uint32_t cpu) override;
     /** @} */
 
     /** @{ */

src/dev/arm/kmi.hh

@@ -151,11 +151,11 @@ class Pl050 : public AmbaIntDevice, public VncKeyboard, public VncMouse
 
     Pl050(const Params *p);
 
-    virtual Tick read(PacketPtr pkt);
-    virtual Tick write(PacketPtr pkt);
+    Tick read(PacketPtr pkt) override;
+    Tick write(PacketPtr pkt) override;
 
-    virtual void mouseAt(uint16_t x, uint16_t y, uint8_t buttons);
-    virtual void keyPress(uint32_t key, bool down);
+    void mouseAt(uint16_t x, uint16_t y, uint8_t buttons) override;
+    void keyPress(uint32_t key, bool down) override;
 
     void serialize(CheckpointOut &cp) const override;
     void unserialize(CheckpointIn &cp) override;

src/dev/arm/pl111.hh

@@ -368,8 +368,8 @@ class Pl111: public AmbaDmaDevice
     Pl111(const Params *p);
     ~Pl111();
 
-    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;
@@ -379,7 +379,7 @@ class Pl111: public AmbaDmaDevice
      *
      * @return a list of non-overlapping address ranges
      */
-    AddrRangeList getAddrRanges() const;
+    AddrRangeList getAddrRanges() const override;
 };
 
 #endif

src/dev/arm/rtc_pl031.hh

@@ -116,14 +116,14 @@ class PL031 : public AmbaIntDevice
      * @param pkt The memory request.
      * @param data Where to put the data.
      */
-    virtual Tick read(PacketPtr pkt);
+    Tick read(PacketPtr pkt) override;
 
     /**
      * Handle writes to the device
      * @param pkt The memory request.
      * @param data the data
      */
-    virtual Tick write(PacketPtr pkt);
+    Tick write(PacketPtr pkt) override;
 
     void serialize(CheckpointOut &cp) const override;
     void unserialize(CheckpointIn &cp) override;

src/dev/arm/timer_cpulocal.hh

@@ -177,14 +177,14 @@ class CpuLocalTimer : public BasicPioDevice
      * @param pkt The memory request.
      * @return Returns latency of device read
      */
-    virtual Tick read(PacketPtr pkt);
+    Tick read(PacketPtr pkt) override;
 
     /**
      * Handle a write to the device.
      * @param pkt The memory request.
      * @return Returns latency of device write
      */
-    virtual Tick write(PacketPtr pkt);
+    Tick write(PacketPtr pkt) override;
 
     void serialize(CheckpointOut &cp) const override;
     void unserialize(CheckpointIn &cp) override;

src/dev/arm/timer_sp804.hh

@@ -150,14 +150,14 @@ class Sp804 : public AmbaPioDevice
      * @param pkt The memory request.
      * @param data Where to put the data.
      */
-    virtual Tick read(PacketPtr pkt);
+    Tick read(PacketPtr pkt) override;
 
     /**
      * All writes are simply ignored.
      * @param pkt The memory request.
      * @param data the data
      */
-    virtual Tick write(PacketPtr pkt);
+    Tick write(PacketPtr pkt) override;
 
 
     void serialize(CheckpointOut &cp) const override;

src/dev/arm/ufs_device.hh

@@ -823,13 +823,13 @@ class UFSHostDevice : public DmaDevice
     /**
      * Address range functions
      */
-    AddrRangeList getAddrRanges() const;
+    AddrRangeList getAddrRanges() const override;
 
     /**
      * register access functions
      */
-    Tick read(PacketPtr pkt);
-    Tick write(PacketPtr pkt);
+    Tick read(PacketPtr pkt) override;
+    Tick write(PacketPtr pkt) override;
     // end of access functions
 
     /**
@@ -988,7 +988,7 @@ class UFSHostDevice : public DmaDevice
     void readGarbage();
 
     /**register statistics*/
-    void regStats();
+    void regStats() override;
 
     /**
      * Host controller information

src/dev/arm/vgic.hh

@@ -207,10 +207,10 @@ class VGic : public PioDevice
     }
     VGic(const Params *p);
 
-    virtual AddrRangeList getAddrRanges() const;
+    AddrRangeList getAddrRanges() const override;
 
-    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;