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// SPDX-License-Identifier: GPL-2.0
#![no_std]
#![feature(global_asm)]
use kernel::prelude::*;
module!{
type: RustExample,
name: b"rust_example",
author: b"Rust for Linux Contributors",
description: b"An example kernel module written in Rust",
license: b"GPL v2",
params: {
my_bool: bool {
default: true,
permissions: 0,
description: b"Example of bool",
},
my_i32: i32 {
default: 42,
permissions: 0o644,
description: b"Example of i32",
},
},
}
struct RustExample {
message: String,
}
impl KernelModule for RustExample {
fn init() -> KernelResult<Self> {
println!("Rust Example (init)");
println!("Am I built-in? {}", !cfg!(MODULE));
println!("Parameters:");
println!(" my_bool: {}", my_bool.read());
println!(" my_i32: {}", my_i32.read());
Ok(RustExample {
message: "on the heap!".to_owned(),
})
}
}
impl Drop for RustExample {
fn drop(&mut self) {
println!("My message is {}", self.message);
println!("Rust Example (exit)");
}
}
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