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Use memfd_create on FreeBSD #341

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Use memfd_create on FreeBSD #341

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ids1024
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@ids1024 ids1024 commented Jan 12, 2023

Fixes #292.

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ids1024 commented Jan 12, 2023

Ah, fails to link on FreeBSD 12.1? Well, I guess that answers my question of when this was added. Not sure if there's any easy way to conditionally build based on FreeBSD version (would depending on features from the version of FreeBSD a project is compiled on be expected behavior?).

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i509VCB commented Jan 17, 2023

Could we try to dynamically load memfd_create on FreeBSD? Or would that be overcomplicated?

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ids1024 commented Jan 17, 2023

Would we need to dlopen libc.so to do that? A bit awkward.

FreeBSD also has a SHM_ANON flag that can be passed as the path for shm_open. Which I think is basically the same as memfd_create but without support for sealing.

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i509VCB commented Jun 19, 2023

One question we could ask here is would a feature make sense to guard this from FreeBSD 12?

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Support memfd on FreeBSD platform
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