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authorMiguel Ojeda <ojeda@kernel.org>2023-03-06 20:17:12 +0100
committerJonathan Corbet <corbet@lwn.net>2023-03-07 10:24:40 -0700
commit0b02076f995332fe1e457da29dd61c3b66c862f7 (patch)
treef73206e57a8c6b5603e418b06851357fbb5d5b52 /Documentation
parent38484a1d0c50596c8080a00c269466f60fa4a051 (diff)
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: Miguel Ojeda <ojeda@kernel.org> Link: https://lore.kernel.org/r/20230306191712.230658-2-ojeda@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/process/programming-language.rst19
1 files changed, 18 insertions, 1 deletions
diff --git a/Documentation/process/programming-language.rst b/Documentation/process/programming-language.rst
index 10dc772671d8..bc56dee6d0bc 100644
--- a/Documentation/process/programming-language.rst
+++ b/Documentation/process/programming-language.rst
@@ -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.
+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
.. [gcc] https://gcc.gnu.org
.. [clang] https://clang.llvm.org
@@ -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
.. [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
-
+.. [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