@RichFelker Was trying to dredge up the reason exit() can block according to POSIX. Do you remember what API caused that?
Ah, yes, this one is also an issue. Outside scope of POSIX since POSIX doesn't specify a language with dtors.
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Exactly. The destructors lack clear semantics for concurrent shutdown. At best we assured LIFO order and function start happens-before.
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I've added this to my mental notes on "why musl dlclose doesn't unload anything". :-)
End of conversation
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