Can I decompile a x86 library, then compile it to ARM?

Question

I know this is really hard, but I have a library that is in x86, and I want to compile it to ARM to run it on my Rasberry Pi. I've read that some software like Hex-Rays is capable of decompiling, after doing so, is it easy to recompile to arm? Or this mission is impossible?

Answer 1

As long as the decompiler you choose spits out actual C code and not pseudocode (some do), it should just be a matter of adding a few extra flags to your compiler (if you use gcc, these are usually prefaced by -m. See here for gnu's docs). As far as I know, though, most decompilers only work with 32-bit x86, so you may be out of luck if your library is 64-bit. There are also toolchains that are specifically designed for this task, although many of them come packaged with IDEs (check out tools like Codesourcery ).

Good luck