Use latest published HALs and Xtensa toolchain

[bjoernQ]

With Xtensa toolchain 1.67 I again experienced funny things regarding opt-levels

[MabezDev]

FYI opt-level = 3 worked for me on the s2... So maybe @jessebraham you could test too?

[bjoernQ]

Double checked it - opt-level 3 works for the DHCP example but not for the static-ip example for me

[ImUrX]

should this be using esp-riscv-rt?

Is there also any reason why it even exists? I tried understanding esp-rs/esp-hal#311 but like why is its own crate?

[bjoernQ]

The reason esp-riscv-rt exists are outlined in esp-rs/esp-hal#311

[ImUrX]

Ok, then I see that this PR is still using riscv-rt instead of the esp one, is there any reason behind that?

[bjoernQ]

That is because the latest published HALs are not yet using esp-riscv-rt - that will be in the next release (already merged into main) - might be a confusing situation currently

[ImUrX]

God

[MabezDev]

LGTM, will still look into the s2 issues.