Static variables and "gp"

["Gilad Benjamini" <yaelgilad@myrealbox.com>]

Hi,
How can I force a specific static variable to be used by the "gp" register
rather than by a two-step load ?
Compiling a mips-linux using gcc.

I was poking around for information and stumbled across the "-G" flag,
the "__attribute__ ((section (".sdata")))" (or sbss), the "-msdata" but to no 
avail.
I only got more confused.

Any help will be appreciated