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0 pointsloeg6y ago0 comments

Go doesn't link libc at all, generally.

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3 comments · 2 top-level

vetinari6y ago· 1 in thread

Not on Linux, with some exceptions (it wants to play nice with nsswitch, after all). It does/has to on macOS, especially if you want your binaries to work on more than a single system release.

loegOP6y ago

On Linux it has avoided libc for nsswitch in the common case since 2015: https://github.com/golang/go/issues/10485

Golang has only very recently (in its lifetime) and grudgingly admitted that operating systems that provide ABI stability at the DSO layer, rather than the Syscall layer, exist. It has been Linux-first for most of its life, and on Linux syscalls are the ABI stability layer. Not so pretty much anywhere else.

On MacOS, Go links libSystem rather than libc. And this was new in 2018: https://golang.org/doc/go1.11#runtime despite having a Mac port since ~2012. Prior to that they ignored the system ABI stability layer and just did raw Darwin syscalls. They still do so on the BSDs, despite this explicitly not being the supported stability interface.

ashtonkem6y ago

I stand corrected.

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