Turn on ondemand for the tracing mode

Reviewed By: cristianoc

Differential Revision: D2895107

fb-gh-sync-id: cc27d4f
shipit-source-id: cc27d4f

infer/lib/python/inferlib/analyze.py

@@ -430,7 +430,8 @@ class Infer:
         elif self.args.project_root:
             infer_options += ['-project_root', self.args.project_root]
 
-        if self.args.analyzer in [config.ANALYZER_CHECKERS]:
+        if self.args.analyzer in [config.ANALYZER_CHECKERS,
+                                  config.ANALYZER_TRACING]:
             os.environ['INFER_ONDEMAND'] = 'Y'
 
         os.environ['INFER_OPTIONS'] = ' '.join(infer_options)