Upgrade to kernel 5.1

[gnzlbg]

Are there musl sanitized versions of the latest kernel headers ? E.g. the ones shipped with Ubuntu 19.04 ?

[rofl0r]

currently not. is there something missing in particular that you need? if not, there should be no issue with using the ones we ship.

[gnzlbg]

MAP_FIXED_NOREPLACE, among many others, but I can compile a comprehensive List if you want.

[gnzlbg]

Basically we ship Rust musl targets with the headers here (thank you, btw, without this, it would be much harder to do this), and while our Rust gnu targets supports up-to kernel 5.x features, our musl ones do not.

[rofl0r]

i pushed a tag for kernel 4.4.2-based headers, plus a number of regression tests. seems to work fine so far (i did a testbuild of a good portion of sabotage's packages against it). i also tried with a much newer kernel, however there were a lot of internal inconsistencies, so i opted for a smaller jump for the time being. in number of major kernel version bumps, this is roughly half way between where we were and 5.x.

[gnzlbg]

i pushed a tag for kernel 4.4.2-based headers, plus a number of regression tests. seems to work fine so far (i did a testbuild of a good portion of sabotage's packages against it).

@rofl0r thank you! I'll upgrade our musl builders to start using that, and once we finish some internal refactorings, we should end up with a documented list of what exactly (if anything) are we still missing.

i also tried with a much newer kernel, however there were a lot of internal inconsistencies, so i opted for a smaller jump for the time being.

Makes sense. For us it is also good to do these updates incrementally.

[copy]

Another update would be nice, e.g. for struct clone_args.