1 .. SPDX-License-Identifier: GPL-2.0 2 3 Arch Support 4 ============ 5 6 Currently, the Rust compiler (``rustc``) uses LLVM for code generation, 7 which limits the supported architectures that can be targeted. In addition, 8 support for building the kernel with LLVM/Clang varies (please see 9 Documentation/kbuild/llvm.rst). This support is needed for ``bindgen`` 10 which uses ``libclang``. 11 12 Below is a general summary of architectures that currently work. Level of 13 support corresponds to ``S`` values in the ``MAINTAINERS`` file. 14 15 ============= ================ ============================================== 16 Architecture 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
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