arm: Fix memleak in VGic by adding destructor

Change-Id: I864b5d9ed655cc52e440e2eb54987e8ff9a73296
Signed-off-by: Sean Wilson <spwilson2@wisc.edu>
Reviewed-on: https://gem5-review.googlesource.com/3900
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>

src/dev/arm/vgic.cc

@@ -60,6 +60,12 @@ VGic::VGic(const Params *p)
     assert(sys->numRunningContexts() <= VGIC_CPU_MAX);
 }
 
+VGic::~VGic()
+{
+    for (int x = 0; x < VGIC_CPU_MAX; x++)
+        delete postVIntEvent[x];
+}
+
 Tick
 VGic::read(PacketPtr pkt)
 {

src/dev/arm/vgic.hh

@@ -206,6 +206,7 @@ class VGic : public PioDevice
         return dynamic_cast<const Params *>(_params);
     }
     VGic(const Params *p);
+    ~VGic();
 
     AddrRangeList getAddrRanges() const override;