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2023-08-10btf, scripts: rust: drop is_rust_module.shAndrea Righi1-1/+1
With commit c1177979af9c ("btf, scripts: Exclude Rust CUs with pahole") we are now able to use pahole directly to identify Rust compilation units (CUs) and exclude them from generating BTF debugging information (when DEBUG_INFO_BTF is enabled). And if pahole doesn't support the --lang-exclude flag, we can't enable both RUST and DEBUG_INFO_BTF at the same time. So, in any case, the script is_rust_module.sh is just redundant and we can drop it. NOTE: we may also be able to drop the "Rust loadable module" mark inside Rust modules, but it seems safer to keep it for now to make sure we are not breaking any external tool that may potentially rely on it. Signed-off-by: Andrea Righi <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Tested-by: Eric Curtin <[email protected]> Reviewed-by: Eric Curtin <[email protected]> Reviewed-by: Neal Gompa <[email protected]> Reviewed-by: Masahiro Yamada <[email protected]> Reviewed-by: Martin Rodriguez Reboredo <[email protected]> Acked-by: Daniel Xu <[email protected]> Link: https://lore.kernel.org/r/[email protected] [ Picked the `Reviewed-by`s from the old patch too. ] Signed-off-by: Miguel Ojeda <[email protected]>
2023-04-12rust: error: Rename to_kernel_errno() -> to_errno()Asahi Lina1-1/+1
This is kernel code, so specifying "kernel" is redundant. Let's simplify things and just call it to_errno(). Reviewed-by: Gary Guo <[email protected]> Reviewed-by: Martin Rodriguez Reboredo <[email protected]> Signed-off-by: Asahi Lina <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Miguel Ojeda <[email protected]>
2023-04-10rust: macros: Allow specifying multiple module aliasesAsahi Lina1-5/+25
Modules can (and usually do) have multiple alias tags, in order to specify multiple possible device matches for autoloading. Allow this by changing the alias ModuleInfo field to an Option<Vec<String>>. Note: For normal device IDs this is autogenerated by modpost (which is not properly integrated with Rust support yet), so it is useful to be able to manually add device match aliases for now, and should still be useful in the future for corner cases that modpost does not handle. This pulls in the expect_group() helper from the rfl/rust branch (with credit to authors). Co-developed-by: Miguel Ojeda <[email protected]> Signed-off-by: Miguel Ojeda <[email protected]> Co-developed-by: Finn Behrens <[email protected]> Signed-off-by: Finn Behrens <[email protected]> Co-developed-by: Sumera Priyadarsini <[email protected]> Signed-off-by: Sumera Priyadarsini <[email protected]> Reviewed-by: Vincenzo Palazzo <[email protected]> Signed-off-by: Asahi Lina <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Miguel Ojeda <[email protected]>
2022-12-04rust: macros: take string literals in `module!`Gary Guo1-5/+5
Instead of taking binary string literals, take string ones instead, making it easier for users to define a module, i.e. instead of calling `module!` like: module! { ... name: b"rust_minimal", ... } now it is called as: module! { ... name: "rust_minimal", ... } Module names, aliases and license strings are restricted to ASCII only. However, the author and the description allows UTF-8. For simplicity (avoid parsing), escape sequences and raw string literals are not yet handled. Link: https://github.com/Rust-for-Linux/linux/issues/252 Link: https://lore.kernel.org/lkml/[email protected]/ Signed-off-by: Gary Guo <[email protected]> [Reworded, adapted for upstream and applied latest changes] Signed-off-by: Miguel Ojeda <[email protected]>
2022-09-28rust: add `macros` crateMiguel Ojeda1-0/+282
This crate contains all the procedural macros ("proc macros") shared by all the kernel. Procedural macros allow to create syntax extensions. They run at compile-time and can consume as well as produce Rust syntax. For instance, the `module!` macro that is used by Rust modules is implemented here. It allows to easily declare the equivalent information to the `MODULE_*` macros in C modules, e.g.: module! { type: RustMinimal, name: b"rust_minimal", author: b"Rust for Linux Contributors", description: b"Rust minimal sample", license: b"GPL", } Co-developed-by: Alex Gaynor <[email protected]> Signed-off-by: Alex Gaynor <[email protected]> Co-developed-by: Finn Behrens <[email protected]> Signed-off-by: Finn Behrens <[email protected]> Co-developed-by: Adam Bratschi-Kaye <[email protected]> Signed-off-by: Adam Bratschi-Kaye <[email protected]> Co-developed-by: Wedson Almeida Filho <[email protected]> Signed-off-by: Wedson Almeida Filho <[email protected]> Co-developed-by: Sumera Priyadarsini <[email protected]> Signed-off-by: Sumera Priyadarsini <[email protected]> Co-developed-by: Gary Guo <[email protected]> Signed-off-by: Gary Guo <[email protected]> Co-developed-by: Matthew Bakhtiari <[email protected]> Signed-off-by: Matthew Bakhtiari <[email protected]> Co-developed-by: Björn Roy Baron <[email protected]> Signed-off-by: Björn Roy Baron <[email protected]> Signed-off-by: Miguel Ojeda <[email protected]>