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.. SPDX-License-Identifier: GPL-2.0

Arch Support
============

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
============  ================  ==============================================
============  ================  ==============================================