Re: Anybody out there? (ETXTBSY)

H. Peter Anvin (hpa@transmeta.com)
28 Aug 1998 02:57:59 GMT

Followup to: <19980827184637.20618.qmail@defiant.cqc.com>
By author: "pacman" <pacman-kernel@cqc.com>
In newsgroup: linux.dev.kernel
>
> Richard Henderson writes the following:
> >
> >ETXTBSY is explicitly not set on shared libraries. If you turn
> >it on, it is impossible to upgrade libc.so.
>
> Just like it's impossible to upgrade init? or /bin/sh? I think you're
> overlooking something here :)
>

Upgrading /bin/sh is perfectly doable, as is upgrading libc.so. You
have to unlink() the binary and then rename() the new one to the
proper name, of course without needing to run a new binary in between.
mv -f does this correctly, and ETXTBSY isn't a problem.

-hpa

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