Hello Qiulong,
Actually, the question is not in our support range, but I can give you some advice.
(1) Downloading new version if busybox from it's source code website.
(2)Adjusting it's Makefile according to the path of cross-compiler in your linux system.
(3)Compiling it by static mode(this mode will compile libs into those commands you want)
(4)After compiling, copy those .bin files in output directory to /system/bin/ of android.
(or, make a subdirectory, such as 'bin' in root directroy)
(5) Adding your commmand path to init.rc ( for example add /bin/ in path prameter)
Hope above items can help you !
Regards,
Weidong