rtemstoolkit: Move host support access into a separate module.

Moving the host support into a module lets it get used where options
is not being used.

rtemstoolkit/freebsd.py

@@ -1,6 +1,6 @@
 #
 # RTEMS Tools Project (http://www.rtems.org/)
-# Copyright 2010-2016 Chris Johns (chrisj@rtems.org)
+# Copyright 2010-2017 Chris Johns (chrisj@rtems.org)
 # All rights reserved.
 #
 # This file is part of the RTEMS Tools package in 'rtems-tools'.
@@ -33,7 +33,6 @@
 # RTEMS project's spec files.
 #
 
-import pprint
 import os
 
 #
@@ -47,15 +46,19 @@ except (ValueError, SystemError):
     import check
     import execute
 
-def load():
-    uname = os.uname()
+def cpus():
     sysctl = '/sbin/sysctl '
     e = execute.capture_execution()
     exit_code, proc, output = e.shell(sysctl + 'hw.ncpu')
     if exit_code == 0:
-        ncpus = output.split(' ')[1].strip()
+        ncpus = int(output.split(' ')[1].strip())
     else:
-        ncpus = '1'
+        ncpus = 1
+    return ncpus
+
+def overrides():
+    uname = os.uname()
+    ncpus = '%d' % (cpus())
     if uname[4] == 'amd64':
         cpu = 'x86_64'
     else:
@@ -104,4 +107,6 @@ def load():
     return defines
 
 if __name__ == '__main__':
-    pprint.pprint(load())
+    import pprint
+    pprint.pprint(cpus())
+    pprint.pprint(overrides())