interrupt handler and gnu

How do I get the gnu compiler to save processor state for a interrupt handler?
I have tried #pragma interrupt but it didn't work.  I'm compiling for the 8260
pqII.  I have started writing the code myself.  Do I need to save the fp regs?
Any help will be welcomed.

Thanks,
Ken Maier

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/