PhDUCSB <eng.hmohsen@xxxxxxxxx> writes: > Ian Lance Taylor-3 wrote: >> >> PhDUCSB <eng.hmohsen@xxxxxxxxx> writes: >> >>> I am trying to modify the gcc backend to reverse the stack growth >>> direction. >>> Do you think this is an easy task to do? >> >> It kind of depends on the backend. It's easy to change what the >> middle-end cares about--just undefine STACK_GROWS_DOWNWARD. You'll have >> to make sure that the backend does all the right things in the function >> prologue and epilogue code. > > Thanks for that tip. I tried doing that but the problem right now is that > both compilers( the original and mine) produce the same executable > regardless of any modifications I have done. I really have no clue. Please > help. We can't help you without a lot more information. What backend are you using? What are you really trying to do? The stack direction is normally built into a backend in many different ways, so if you want to change an existing backend, you should expect to change many different places. This is not a task to be undertaken lightly, without a detailed knowledge of gcc backend implementations. Ian
