Hi, Can anybody give me a clue as to how to approach the problem of modifying the stack layout for gcc? I am not a compiler expert, but am trying to experiment with a new chip architecture that uses a special instruction that adds an extra 4 bytes after a buffer declaration or after the return address. (I guess it would be similar to adding a canary like propolice or stackguard) Can anybody help or point me in the right direction? Thanks. ~lisa