documentation for make targets

[Jeffrey Williams]

Can someone point to documentation for all the make targets in used in 
the /usr/src/Makefile.  I am not looking for full documentation of each 
target, once I narrow down what targets I want I can get what need by 
walking the make files, but what I am looking for is a document that has 
a brief (short paragraph) of for each make target, describing its 
general purpose/function.

Thanks,
Jeff