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.
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Architecture Level of support Constraints
============ ================ ==============================================
um Maintained x86_64 only.
x86 Maintained x86_64 only.
============ ================ ==============================================