Documentation/rust/arch-support.rst
Source file repositories/reference/linux-study-clean/Documentation/rust/arch-support.rst
File Facts
- System
- Linux kernel
- Corpus path
Documentation/rust/arch-support.rst- Extension
.rst- Size
- 1173 bytes
- Lines
- 27
- Domain
- Support Tooling And Documentation
- Bucket
- Documentation
- Inferred role
- Support Tooling And Documentation: documentation
- Status
- atlas-only
Why This File Exists
Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
.. 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
============= ================ ==============================================
``arm`` Maintained ARMv7 Little Endian only.
``arm64`` Maintained Little Endian only.
``loongarch`` Maintained \-
``riscv`` Maintained ``riscv64`` and LLVM/Clang only.
``s390`` Maintained ``CONFIG_EXPOLINE`` must be disabled.
``um`` Maintained \-
``x86`` Maintained ``x86_64`` only.
============= ================ ==============================================Annotation
- Atlas domain: Support Tooling And Documentation / Documentation.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.