xref: /linux/rust/bindings/lib.rs (revision b7c8d7a8d251ab63fba3cc964f1928a216c28081)
1 // SPDX-License-Identifier: GPL-2.0
2 
3 //! Bindings.
4 //!
5 //! Imports the generated bindings by `bindgen`.
6 //!
7 //! This crate may not be directly used. If you need a kernel C API that is
8 //! not ported or wrapped in the `kernel` crate, then do so first instead of
9 //! using this crate.
10 
11 #![no_std]
12 // See <https://github.com/rust-lang/rust-bindgen/issues/1651>.
13 #![cfg_attr(test, allow(deref_nullptr))]
14 #![cfg_attr(test, allow(unaligned_references))]
15 #![cfg_attr(test, allow(unsafe_op_in_unsafe_fn))]
16 #![allow(
17     clippy::all,
18     missing_docs,
19     non_camel_case_types,
20     non_upper_case_globals,
21     non_snake_case,
22     improper_ctypes,
23     unreachable_pub,
24     unsafe_op_in_unsafe_fn
25 )]
26 
27 #[allow(dead_code)]
28 #[allow(clippy::cast_lossless)]
29 #[allow(clippy::ptr_as_ptr)]
30 #[allow(clippy::undocumented_unsafe_blocks)]
31 #[cfg_attr(CONFIG_RUSTC_HAS_UNNECESSARY_TRANSMUTES, allow(unnecessary_transmutes))]
32 mod bindings_raw {
33     // Manual definition for blocklisted types.
34     type __kernel_size_t = usize;
35     type __kernel_ssize_t = isize;
36     type __kernel_ptrdiff_t = isize;
37 
38     // Use glob import here to expose all helpers.
39     // Symbols defined within the module will take precedence to the glob import.
40     pub use super::bindings_helper::*;
41     include!(concat!(
42         env!("OBJTREE"),
43         "/rust/bindings/bindings_generated.rs"
44     ));
45 }
46 
47 // When both a directly exposed symbol and a helper exists for the same function,
48 // the directly exposed symbol is preferred and the helper becomes dead code, so
49 // ignore the warning here.
50 #[allow(dead_code)]
51 mod bindings_helper {
52     // Import the generated bindings for types.
53     use super::bindings_raw::*;
54     include!(concat!(
55         env!("OBJTREE"),
56         "/rust/bindings/bindings_helpers_generated.rs"
57     ));
58 }
59 
60 pub use bindings_raw::*;
61