misc: Fix a number of unitialised variables and members

Static analysis unearther a bunch of uninitialised variables and
members, and this patch addresses the problem. In all cases these
omissions seem benign in the end, but at least fixing them means less
false positives next time round.

6 files changed, 10 insertions, 6 deletions

diff --git a/src/base/cprintf_formats.hh b/src/base/cprintf_formats.hh
index 6bf6b2b66..991238dee 100644
--- a/src/base/cprintf_formats.hh
+++ b/src/base/cprintf_formats.hh
@@ -65,6 +65,7 @@ struct Format
         uppercase = false;
         base = dec;
         format = none;
+        float_format = best;
         precision = -1;
         width = 0;
         get_precision = false;
diff --git a/src/base/debug.hh b/src/base/debug.hh
index 1cd64cfc2..20bf8e76d 100644
--- a/src/base/debug.hh
+++ b/src/base/debug.hh
@@ -66,7 +66,7 @@ class SimpleFlag : public Flag
 
   public:
     SimpleFlag(const char *name, const char *desc)
-        : Flag(name, desc)
+        : Flag(name, desc), _status(false)
     { }
 
     bool status() const { return _status; }
diff --git a/src/base/loader/elf_object.cc b/src/base/loader/elf_object.cc
index 9445f1df9..4abf0a432 100644
--- a/src/base/loader/elf_object.cc
+++ b/src/base/loader/elf_object.cc
@@ -239,7 +239,8 @@ ElfObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
 ElfObject::ElfObject(const string &_filename, int _fd,
                      size_t _len, uint8_t *_data,
                      Arch _arch, OpSys _opSys)
-    : ObjectFile(_filename, _fd, _len, _data, _arch, _opSys)
+    : ObjectFile(_filename, _fd, _len, _data, _arch, _opSys),
+      _programHeaderTable(0), _programHeaderSize(0), _programHeaderCount(0)
 
 {
     Elf *elf;
diff --git a/src/base/pollevent.cc b/src/base/pollevent.cc
index 9ed6df4fe..fb28d63d6 100644
--- a/src/base/pollevent.cc
+++ b/src/base/pollevent.cc
@@ -57,6 +57,7 @@ PollEvent::PollEvent(int _fd, int _events)
 {
     pfd.fd = _fd;
     pfd.events = _events;
+    pfd.revents = 0;
 }
 
 PollEvent::~PollEvent()
diff --git a/src/base/statistics.hh b/src/base/statistics.hh
index fbf8ee769..8d6644284 100644
--- a/src/base/statistics.hh
+++ b/src/base/statistics.hh
@@ -1092,7 +1092,7 @@ class VectorBase : public DataWrapVec<Derived, VectorInfoProxy>
 
   public:
     VectorBase()
-        : storage(NULL)
+        : storage(nullptr), _size(0)
     {}
 
     ~VectorBase()
@@ -1232,7 +1232,7 @@ class Vector2dBase : public DataWrapVec2d<Derived, Vector2dInfoProxy>
 
   public:
     Vector2dBase()
-        : storage(NULL)
+        : x(0), y(0), _size(0), storage(nullptr)
     {}
 
     ~Vector2dBase()
@@ -1505,7 +1505,7 @@ class HistStor
         /** The number of buckets.. */
         size_type buckets;
 
-        Params() : DistParams(Hist) {}
+        Params() : DistParams(Hist), buckets(0) {}
     };
 
   private:
diff --git a/src/base/vnc/vncserver.cc b/src/base/vnc/vncserver.cc
index 9ca575915..d11308875 100644
--- a/src/base/vnc/vncserver.cc
+++ b/src/base/vnc/vncserver.cc
@@ -106,7 +106,8 @@ VncServer::DataEvent::process(int revent)
  */
 VncServer::VncServer(const Params *p)
     : VncInput(p), listenEvent(NULL), dataEvent(NULL), number(p->number),
-      dataFd(-1), sendUpdate(false)
+      dataFd(-1), sendUpdate(false),
+      supportsRawEnc(false), supportsResizeEnc(false)
 {
     if (p->port)
         listen(p->port);