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