Commit 0b02076f authored by Miguel Ojeda's avatar Miguel Ojeda Committed by Jonathan Corbet

docs: programming-language: add Rust programming language section

Following the C text in the file, add a mention about the Rust
programming language, the currently supported compiler and
the edition used (similar to the "dialect" mention for C).

Similarly, add a mention about the unstable features used (similar
to the "extensions" mentions for C).

In addition, add some links to complement the information.
Signed-off-by: default avatarMiguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20230306191712.230658-2-ojeda@kernel.orgSigned-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 38484a1d
...@@ -31,6 +31,20 @@ in order to feature detect which ones can be used and/or to shorten the code. ...@@ -31,6 +31,20 @@ in order to feature detect which ones can be used and/or to shorten the code.
Please refer to ``include/linux/compiler_attributes.h`` for more information. Please refer to ``include/linux/compiler_attributes.h`` for more information.
Rust
----
The kernel has experimental support for the Rust programming language
[rust-language]_ under ``CONFIG_RUST``. It is compiled with ``rustc`` [rustc]_
under ``--edition=2021`` [rust-editions]_. Editions are a way to introduce
small changes to the language that are not backwards compatible.
On top of that, some unstable features [rust-unstable-features]_ are used in
the kernel. Unstable features may change in the future, thus it is an important
goal to reach a point where only stable features are used.
Please refer to Documentation/rust/index.rst for more information.
.. [c-language] http://www.open-std.org/jtc1/sc22/wg14/www/standards .. [c-language] http://www.open-std.org/jtc1/sc22/wg14/www/standards
.. [gcc] https://gcc.gnu.org .. [gcc] https://gcc.gnu.org
.. [clang] https://clang.llvm.org .. [clang] https://clang.llvm.org
...@@ -38,4 +52,7 @@ Please refer to ``include/linux/compiler_attributes.h`` for more information. ...@@ -38,4 +52,7 @@ Please refer to ``include/linux/compiler_attributes.h`` for more information.
.. [gnu-extensions] https://gcc.gnu.org/onlinedocs/gcc/C-Extensions.html .. [gnu-extensions] https://gcc.gnu.org/onlinedocs/gcc/C-Extensions.html
.. [gcc-attribute-syntax] https://gcc.gnu.org/onlinedocs/gcc/Attribute-Syntax.html .. [gcc-attribute-syntax] https://gcc.gnu.org/onlinedocs/gcc/Attribute-Syntax.html
.. [n2049] http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2049.pdf .. [n2049] http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2049.pdf
.. [rust-language] https://www.rust-lang.org
.. [rustc] https://doc.rust-lang.org/rustc/
.. [rust-editions] https://doc.rust-lang.org/edition-guide/editions/
.. [rust-unstable-features] https://github.com/Rust-for-Linux/linux/issues/2
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