Hermit: use sys_read_entropy syscall

[newpavlov]

The syscall was implemented in hermit-os/kernel#640

On non-x86 targets it will return -ENOSYS (which, frankly, IMO is quite bad), but I would say it's outside of our area of responsibility.

cc @joboet @stlankes

[josephlr]

I agree that handing which platform Hermit supports is not our job, so this implementation should be fine.

Could we add a documentation link?

[newpavlov]

I couldn't find a documentation to which we could link, so the only option for now is to link the source code. I am not sure such link would be useful.

[josephlr]

I couldn't find a documentation to which we could link, so the only option for now is to link the source code. I am not sure such link would be useful.

I think linking to the system crate (which is the preferred interface to Hermit) would be appropriate: https://hermitcore.github.io/libhermit-rs/hermit/fn.sys_read_entropy.html

[newpavlov]

Ah, good find!

[hugusmaximus]

I couldn't find a documentation to which we could link, so the only option for now is to link the source code. I am not sure such link would be useful.

I think linking to the system crate (which is the preferred interface to Hermit) would be appropriate: https://hermitcore.github.io/libhermit-rs/hermit/fn.sys_read_entropy.html

This link is broken...

[newpavlov]

@hugusmaximus
The documentation currently uses this link.

[hugusmaximus]

Yes, I found this info too... I was s bit confused. Thanks. El jue., 4 ene. 2024 21:38, Artyom Pavlov ***@***.***> escribió:

…

@hugusmaximus <https://github.com/hugusmaximus> The documentation <https://docs.rs/getrandom> currently uses this link <https://github.com/hermit-os/kernel/blob/315f58ff5efc81d9bf0618af85a59963ff55f8b1/src/syscalls/entropy.rs#L47-L55> . — Reply to this email directly, view it on GitHub <#333 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AQVGKU2ITM6UXBNQRM4F7K3YM4HNTAVCNFSM6AAAAAAUIC72RKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTQNZXG4ZTAMBTHE> . You are receiving this because you were mentioned.Message ID: ***@***.***>