diff --git a/poky/bitbake/lib/bb/cookerdata.py b/poky/bitbake/lib/bb/cookerdata.py
index ba657c0..397b43d 100644
--- a/poky/bitbake/lib/bb/cookerdata.py
+++ b/poky/bitbake/lib/bb/cookerdata.py
@@ -86,7 +86,7 @@
                 action['msg'] = "Only one target can be used with the --environment option."
             elif self.options.buildfile and len(self.options.pkgs_to_build) > 0:
                 action['msg'] = "No target should be used with the --environment and --buildfile options."
-            elif len(self.options.pkgs_to_build) > 0:
+            elif self.options.pkgs_to_build:
                 action['action'] = ["showEnvironmentTarget", self.options.pkgs_to_build]
             else:
                 action['action'] = ["showEnvironment", self.options.buildfile]
@@ -210,7 +210,7 @@
 
 #
 # We search for a conf/bblayers.conf under an entry in BBPATH or in cwd working
-# up to /. If that fails, we search for a conf/bitbake.conf in BBPATH.
+# up to /. If that fails, bitbake would fall back to cwd.
 #
 
 def findTopdir():
@@ -223,11 +223,8 @@
     layerconf = findConfigFile("bblayers.conf", d)
     if layerconf:
         return os.path.dirname(os.path.dirname(layerconf))
-    if bbpath:
-        bitbakeconf = bb.utils.which(bbpath, "conf/bitbake.conf")
-        if bitbakeconf:
-            return os.path.dirname(os.path.dirname(bitbakeconf))
-    return None
+
+    return os.path.abspath(os.getcwd())
 
 class CookerDataBuilder(object):
 
@@ -417,6 +414,9 @@
                         " invoked bitbake from the wrong directory?")
             raise SystemExit(msg)
 
+        if not data.getVar("TOPDIR"):
+            data.setVar("TOPDIR", os.path.abspath(os.getcwd()))
+
         data = parse_config_file(os.path.join("conf", "bitbake.conf"), data)
 
         # Parse files for loading *after* bitbake.conf and any includes