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0 pointstrasz5y ago0 comments

FreeBSD guarantees syscall ABI stability too.

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2 comments · 1 top-level

ChrisSD5y ago· 1 in thread

Do you have a source for that? The closest I could find suggests otherwise, but admittedly I haven't yet found a more relevant document on policy:

> No compatibility for API and ABI is guaranteed from one to the next major release, though an effort is made to make the upgrade process and source code changes as untroubled as possible.

https://wiki.freebsd.org/VendorInformation

traszOP5y ago

It’s pretty obvious from the fact that people are routinely running jails with old userspace (eg 11.0) under newer kernels (eg 13.0). It doesn’t always work for management interfaces (so eg an old route(8) binary might be broken), but is guaranteed to work for normal user programs.

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