I recently updated my compiler to the latest yagarto build.  The switch 
to eabi now breaks all my code :(

I was able to track down the problem to the procedure call standard for 
eabi, in particular to the usage of the r12 register.  This register 
must have remained untouched in arm-elf builds.

Is there a way to instruct the compiler/linker to not use r12, also 
known as the intra-procedure call register [ip].