object file splitting for space optimization

[Ian Thompson]

hi,

i have an object file that is a little over 1k in size, but i'm only using
one function in it (which is maybe 100 bytes).  the problem is -- how can
i link in that object file but have the extra code removed?  i've tried
using the -Os flag, which didn't help much.  the problem can easily be
solved with ifdefs or manually splitting up the object, but i was
wondering if there was a more elegant way to do it.  i'm using gcc 2.96
and cross-compiling for 32-bit mips.

thanks for your help!  
-ian