multivers_runner/
lib.rs

1#![doc = "README.md"]
2#![feature(stdarch_internal)]
3#![allow(internal_features)]
4#![cfg_attr(not(test), no_main)]
5#![cfg_attr(test, allow(dead_code))]
6
7mod build;
8
9use build::{Build, Executable};
10
11/// Function called at program startup.
12///
13/// When [main] is executed, it uncompresses and executes the version that matches the CPU features
14/// of the host.
15///
16/// # Example
17///
18/// ```no_run
19/// #![no_main]
20///
21/// pub use multivers_runner::main;
22/// ```
23///
24/// # Safety
25///
26/// - `argc` must never be negative.
27/// - `argv` and `envp` must be null-terminated arrays of valid pointers to null-terminated strings.
28/// - Each element of `argv` and `envp` must be valid for reads of bytes up to and including the null terminator.
29#[unsafe(no_mangle)]
30#[cfg(not(test))]
31pub unsafe extern "C" fn main(argc: i32, argv: *const *const i8, envp: *const *const i8) {
32    let result = unsafe { run(argc, argv, envp) };
33
34    proc_exit::exit(result);
35}
36
37unsafe fn run(argc: i32, argv: *const *const i8, envp: *const *const i8) -> proc_exit::ExitResult {
38    let build = Build::find().unwrap_or_default();
39
40    unsafe { build.exec(argc, argv, envp) }?;
41
42    Ok(())
43}
multivers_runner/lib.rs

multivers_runner/
lib.rs
