On Wed, Feb 04, 2026 at 12:36:38PM +0000, Gary Guo wrote: > On Wed Feb 4, 2026 at 10:41 AM GMT, Alice Ryhl wrote: > > On Wed, Feb 04, 2026 at 04:05:04AM +0100, Link Mauve wrote: > >> For now only Big Endian 32-bit PowerPC is supported, as that is the only > >> hardware I have. This has been tested on the Nintendo Wii so far, but I > >> plan on also using it on the GameCube, Wii U and Apple G4. > > > > Super cool! > > > >> These changes aren’t the only ones required to get the kernel to compile > >> and link on PowerPC, libcore will also have to be changed to not use > >> integer division to format u64, u128 and core::time::Duration, otherwise > >> __udivdi3() and __umoddi3() will have to be added. I have tested this > >> change by replacing the three implementations with unimplemented!() and > >> it linked just fine. > > > > Uh oh this seems tricky. How is this not a problem on arm32 too? > > > > Perhaps we should just be providing __udivdi3() and __umoddi3() in > > general? > > I think there is some concern that if this is provided, then C side that uses > the divide operator instead of dividing function doesn't get linker error > anymore. > > However, a proper way is to do this via the hooks that we already have in > `compiler_builtins.rs`. > > This can either be replace these with panics or actual implementation, but for > libcore.o only.
Is there any reason to not make it Rust-only but for all Rust code? Making the / operator work seems like it would be a good idea. Alice
