Hi! On Mon, Sep 08, 2025 at 10:08:39AM +0200, Florian Weimer via Gcc-help wrote: > > The executable format that works on HPE Nonstop Compute's OSS is > > ELF64-bit, Big_Endian, X86_64. We do have C17 & C++17 support on the > > platform with some minor exceptions so hopefully the build will be > > smooth. I'll try and build it locally as suggested and then try the > > same on the Nonstop compute. > > Note that this would be the first x86 big-endian port. I don't think > anyone ever succeeded in completing a port. There have been several > attempts over the years. It is pretty hopeless to even try if there is no defined big-endian ABI for this. If there is on, written down and everything, implementing it is not necessarily simple, but at least it is a well-defined task, where you do not really need to guess things. All x86 big-endian things will be awkward at best, the machine architecture itself is very much wrong-endian after all. Good luck! Segher