iPhone:~ root# cycript -p XXXX weak_classdump.cy
'Added weak_classdump to "XXXX" (8088)'
iPhone:~ root# cycript -p XXXX
cy# ?debug
debug == true
cy# weak_classdump(KBNewAppDelegate, "/var/root/test");
cy= weak_classdump(KBNewAppDelegate,"/var/root/test")
Application received signal SIGSEGV