Support for Moxie Virtual CPU

[adrianbrink]

I would like to build a project that runs on the Moxie Virtual CPU which runs a PowerPC. Moxie has a complete GNU toolchain for C/C++ development. Furthermore there is already a target powerpc-unknown-linux-gnu which seems applicable to this situation.

My question is whether rust already supports Moxie and how I would go about using it.

[adrianbrink]

I think the correct target triple would be moxie-unknown-elf.

Source

[jonas-schievink]

There doesn't seem to be an LLVM backend, so you'd have to write one first, or use a different rustc backend once they're ready. Could also try out mrustc.

[adrianbrink]

How does one go about writing a new backend for rust? Also is there a backend for Risk-V?

[nagisa]

Implementing a Rust backend is trivial once a LLVM backend exists. RISC-V backend in LLVM, while experimental, exists. Documentation on how to implement an LLVM backend is here.

[memoryruins]

re: RISC-V backend

• "Enable RISCV" Enable RISCV #52787
  • Linux? Enable RISCV #52787 (comment)
• "Riscv64 support?" Riscv64 support? rust-embedded/wg#218 (comment)