Implement exec.

Change-Id: I20329bc9b378479d745b498d6a00eca0872cd5ab
diff --git a/init/Android.mk b/init/Android.mk
index a3b01e1..ec2861b 100644
--- a/init/Android.mk
+++ b/init/Android.mk
@@ -75,6 +75,7 @@
 include $(CLEAR_VARS)
 LOCAL_MODULE := init_tests
 LOCAL_SRC_FILES := \
+    init_parser_test.cpp \
     util_test.cpp \
 
 LOCAL_SHARED_LIBRARIES += \