1.. SPDX-License-Identifier: GPL-2.0 2 3Arch Support 4============ 5 6Currently, the Rust compiler (``rustc``) uses LLVM for code generation, 7which limits the supported architectures that can be targeted. In addition, 8support for building the kernel with LLVM/Clang varies (please see 9Documentation/kbuild/llvm.rst). This support is needed for ``bindgen`` 10which uses ``libclang``. 11 12Below is a general summary of architectures that currently work. Level of 13support corresponds to ``S`` values in the ``MAINTAINERS`` file. 14 15============= ================ ============================================== 16Architecture Level of support Constraints 17============= ================ ============================================== 18``arm64`` Maintained Little Endian only. 19``loongarch`` Maintained \- 20``riscv`` Maintained ``riscv64`` only. 21``um`` Maintained \- 22``x86`` Maintained ``x86_64`` only. 23============= ================ ============================================== 24 25