Documentation/rust/arch-support.rst
.. SPDX-License-Identifier: GPL-2.0
Currently, the Rust compiler (rustc) uses LLVM for code generation,
which limits the supported architectures that can be targeted. In addition,
support for building the kernel with LLVM/Clang varies (please see
Documentation/kbuild/llvm.rst). This support is needed for bindgen
which uses libclang.
Below is a general summary of architectures that currently work. Level of
support corresponds to S values in the MAINTAINERS file.
============= ================ ==============================================
Architecture Level of support Constraints
============= ================ ==============================================
arm Maintained ARMv7 Little Endian only.
arm64 Maintained Little Endian only.
loongarch Maintained -
riscv Maintained riscv64 and LLVM/Clang only.
um Maintained -
x86 Maintained x86_64 only.
============= ================ ==============================================