AW: Rust on RTEMS

[Karel Gardas]

Hello Jan,

cool progress! Looking forward to test once things settles a bit, 
although I'm more of thumb person in arm world. :-)

Thanks for sharing!
Karel

On 1/30/24 11:03, Frank Kühndel wrote:
> On 1/29/24 19:27, Jan.Sommer at dlr.de wrote:
>> Hi everyone,
>>
>> Sorry for the delayed response.
>> Yes, that’s me. I am responsible for the RTEMS related work-package in 
>> the “cRustacea in Space” project.
>> One of the goals is to create a prototypical port of Rust to RTEMS for 
>> our example target platform (Xilinx Zynq).
>> The status is currently the following:
>>
>>    *   I have a custom target based added to the compiler sources 
>> which compiles Rust code for the Zynq
>>    *   I ported the stdlib to work with RTEMS (using the POSIX API)
>>    *   I ported the libc wrapper for this to work
>>    *   I can now compile the below application and unit test and run 
>> it on the (simulated) target using cargo build/run/test without the 
>> need to use any extra attributes as a work-around.
>>
>> fn add_two_numbers(num1: i32, num2: i32) -> i32 {
>>      num1 + num2
>> }
>>
>> #[test]
>> fn test_add_two_numbers() {
>>      assert_eq!(add_two_numbers(2, 3), 5);
>> }
>>
>> pub fn main() -> ! {
>>       println!("Hallo from println");
>>       println!("2 + 2 = {}", add_two_numbers(2,2));
>>
>>       loop {}
>> }
>>
>> My next goal is to add those changes to the official Rust repos in 
>> order to have it as a Tier3 target platform.
>> I need to tidy up my commits and have a few open questions regarding 
>> naming conventions (I will start a corresponding thread here shortly).
>> With that done, it should be much easier for others to play around 
>> with Rust on RTEMS as it only requires to install the nightly compiler 
>> via rustup.
>>
>> Cheers,
>>
>>      Jan