linux-next/rust/uapi/lib.rs
Gary Guo 2fd6f55c04 rust: map __kernel_size_t and friends also to usize/isize
Currently bindgen has special logic to recognise `size_t` and `ssize_t`
and map them to Rust `usize` and `isize`. Similarly, `ptrdiff_t` is
mapped to `isize`.

However this falls short for `__kernel_size_t`, `__kernel_ssize_t` and
`__kernel_ptrdiff_t`. To ensure that they are mapped to usize/isize
rather than 32/64 integers depending on platform, blocklist them in
bindgen parameters and manually provide their definition.

Signed-off-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Trevor Gross <tmgross@umich.edu>
Link: https://lore.kernel.org/r/20240913213041.395655-3-gary@garyguo.net
[ Formatted comment. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2024-11-10 23:58:00 +01:00

34 lines
896 B
Rust

// SPDX-License-Identifier: GPL-2.0
//! UAPI Bindings.
//!
//! Contains the bindings generated by `bindgen` for UAPI interfaces.
//!
//! This crate may be used directly by drivers that need to interact with
//! userspace APIs.
#![no_std]
// See <https://github.com/rust-lang/rust-bindgen/issues/1651>.
#![cfg_attr(test, allow(deref_nullptr))]
#![cfg_attr(test, allow(unaligned_references))]
#![cfg_attr(test, allow(unsafe_op_in_unsafe_fn))]
#![allow(
clippy::all,
clippy::undocumented_unsafe_blocks,
dead_code,
missing_docs,
non_camel_case_types,
non_upper_case_globals,
non_snake_case,
improper_ctypes,
unreachable_pub,
unsafe_op_in_unsafe_fn
)]
// Manual definition of blocklisted types.
type __kernel_size_t = usize;
type __kernel_ssize_t = isize;
type __kernel_ptrdiff_t = isize;
include!(concat!(env!("OBJTREE"), "/rust/uapi/uapi_generated.rs"));