[rustc.git] / compiler / rustc_error_codes / src / error_codes / E0776.md

`#[cmse_nonsecure_entry]` functions require a C ABI

Erroneous code example:

```compile_fail,E0776
#![feature(cmse_nonsecure_entry)]

#[no_mangle]
#[cmse_nonsecure_entry]
pub fn entry_function(input: Vec<u32>) {}
```

To fix this error, declare your entry function with a C ABI, using `extern "C"`.
Commit	Line	Data
1b1a35ee XL	1	`#[cmse_nonsecure_entry]` functions require a C ABI
	2
	3	Erroneous code example:
	4
	5	```compile_fail,E0776
	6	#![feature(cmse_nonsecure_entry)]
	7
	8	#[no_mangle]
	9	#[cmse_nonsecure_entry]
	10	pub fn entry_function(input: Vec<u32>) {}
	11	```
	12
	13	To fix this error, declare your entry function with a C ABI, using `extern "C"`.