Add babeltrace2 for nanos6

bsc/babeltrace2/default.nix

@@ -0,0 +1,32 @@
+{
+  stdenv
+, fetchurl
+, pkgconfig
+, glib
+, libuuid
+, popt
+, elfutils
+, python3
+, swig4
+, ncurses
+, breakpointHook
+}:
+
+stdenv.mkDerivation rec {
+  pname = "babeltrace2";
+  version = "2.0.3";
+
+  src = fetchurl {
+    url = "https://www.efficios.com/files/babeltrace/${pname}-${version}.tar.bz2";
+    sha256 = "1804pyq7fz6rkcz4r1abkkn0pfnss13m6fd8if32s42l4lajadm5";
+  };
+
+  nativeBuildInputs = [ pkgconfig ];
+  buildInputs = [ glib libuuid popt elfutils python3 swig4 ncurses breakpointHook ];
+
+  configureFlags = [
+    "--enable-python-plugins"
+    "--enable-python-bindings"
+  ];
+
+}

overlay.nix

@@ -116,6 +116,8 @@ let
     nanos6Latest = callPackage ./bsc/nanos6/default.nix { };
     nanos6Git = callPackage ./bsc/nanos6/git.nix { };
 
+    babeltrace2 = callPackage ./bsc/babeltrace2/default.nix { };
+
     vtk = callPackage ./bsc/vtk/default.nix {
       inherit (self.xorg) libX11 xorgproto libXt;
     };