kernel/linux.git/rust/exports.c, branch v6.19.11

rust: exports: improve grammar in commentary

2024-10-21T15:35:33+00:00

Commit e26fa546042a ("rust: kbuild: auto generate helper exports") added an errant "the" where one was not needed; remove it. Signed-off-by: Tamir Duberstein Reviewed-by: Dirk Behme Reviewed-by: Alice Ryhl Reviewed-by: Andreas Hindborg Link: https://lore.kernel.org/r/20241009162358.27735-1-tamird@gmail.com [ Reworded title. - Miguel ] Signed-off-by: Miguel Ojeda

kbuild: rust: remove the `alloc` crate and `GlobalAlloc`

2024-10-15T21:10:32+00:00

Now that we have our own `Allocator`, `Box` and `Vec` types we can remove Rust's `alloc` crate and the `new_uninit` unstable feature. Also remove `Kmalloc`'s `GlobalAlloc` implementation -- we can't remove this in a separate patch, since the `alloc` crate requires a `#[global_allocator]` to set, that implements `GlobalAlloc`. Signed-off-by: Danilo Krummrich Link: https://lore.kernel.org/r/20241004154149.93856-29-dakr@kernel.org Signed-off-by: Miguel Ojeda

rust: kbuild: auto generate helper exports

2024-08-19T09:09:02+00:00

This removes the need to explicitly export all symbols. Generate helper exports similarly to what's currently done for Rust crates. These helpers are exclusively called from within Rust code and therefore can be treated similar as other Rust symbols. Signed-off-by: Gary Guo Reviewed-by: Boqun Feng Tested-by: Boqun Feng Link: https://lore.kernel.org/r/20240817165302.3852499-1-gary@garyguo.net [ Fixed dependency path, reworded slightly, edited comment a bit and rebased on top of the changes made when applying Andreas' patch (e.g. no `README.md` anymore, so moved the edits). - Miguel ] Signed-off-by: Miguel Ojeda

rust: replace with in rust/exports.c

2023-12-13T00:09:55+00:00

is the right header to include for using EXPORT_SYMBOL_GPL. includes much more bloat. Signed-off-by: Masahiro Yamada Reviewed-by: Martin Rodriguez Reboredo Link: https://lore.kernel.org/r/20231124142617.713096-1-masahiroy@kernel.org Signed-off-by: Miguel Ojeda

rust: add `build_error` crate

2022-12-04T00:59:16+00:00

The `build_error` crate provides a function `build_error` which will panic at compile-time if executed in const context and, by default, will cause a build error if not executed at compile time and the optimizer does not optimise away the call. The `CONFIG_RUST_BUILD_ASSERT_ALLOW` kernel option allows to relax the default build failure and convert it to a runtime check. If the runtime check fails, `panic!` will be called. Its functionality will be exposed to users as a couple macros in the `kernel` crate in the following patch, thus some documentation here refers to them for simplicity. Signed-off-by: Gary Guo Reviewed-by: Wei Liu [Reworded, adapted for upstream and applied latest changes] Signed-off-by: Miguel Ojeda

rust: export generated symbols

2022-09-28T06:59:52+00:00

All symbols are reexported reusing the `EXPORT_SYMBOL_GPL` macro from C. The lists of symbols are generated on the fly. There are three main sets of symbols to distinguish: - The ones from the `core` and `alloc` crates (from the Rust standard library). The code is licensed as Apache/MIT. - The ones from our abstractions in the `kernel` crate. - The helpers (already exported since they are not generated). We export everything as GPL. This ensures we do not mistakenly expose GPL kernel symbols/features as non-GPL, even indirectly. Reviewed-by: Kees Cook Reviewed-by: Greg Kroah-Hartman Co-developed-by: Alex Gaynor Signed-off-by: Alex Gaynor Co-developed-by: Wedson Almeida Filho Signed-off-by: Wedson Almeida Filho Co-developed-by: Björn Roy Baron Signed-off-by: Björn Roy Baron Signed-off-by: Miguel Ojeda