fix edition 2024 unsafe link section

[Ddystopia]

In edition 2024, we must use #[unsafe(link_section = ...)] instead of #[link_section = ...]. But rtic_macros is only checking for #[link_section = ...].

• fix: in edition 2024 link_section is used as unsafe(link_section = ...)
• chore: changelog entry

[AfoHT]

Really nice you spotted it and got it sorted! Thank you 🚀

Would be amazing if this could be caught in the future with some UI test or similar, something you could look into perhaps?

[Ddystopia]

Oh, I am really now sure how to use existing framework to do this kind of test. When developing this, I used objdump and cargo expand to see there the symbols were put. unsafe(link_section) was ignored by rtic and my symbols ended up in the wrong section

[Ddystopia]

Oh, I probably found a way. Rust gives warning if rtic is not using it

[Ddystopia]

Is this possible to make a ui test in 2024 edition while not changing the edition of rtic itself? Because it seems to me, that to have a ui test in a new edition, I must migrate rtic to the new edition.

[Ddystopia]

I honestly didn't find a better way to tests this. Rust would issue additional warning if attribute would get ignored, and that will cause the test to fail.

[Ddystopia]

@AfoHT I think this is some flaky test, that test failes and fixes randomly