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Re: On time64 and Large File Support
From: |
Demi Marie Obenour |
Subject: |
Re: On time64 and Large File Support |
Date: |
Wed, 1 Mar 2023 19:29:01 -0500 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 |
On 3/1/23 17:38, Eric Blake wrote:
> [replying to the original post, because I'm not sure where else in the
> more recent activity on this thread would be more appropriate]
>
> On Fri, Nov 11, 2022 at 08:38:18AM +0000, Sam James wrote:
>> Hi all,
>>
>> In Gentoo, we've been planning out what we should do for time64 on glibc [0]
>> and concluded that we need some support in glibc for a newer option. I'll
>> outline
>> why below.
>>
> ...
>>
>> Indeed, the gnulib version of change #2 is exactly how we ended up with
>> wget/gnutls breaking [1]. I feel this shows that the only approach
>> "supported" by glibc right now is untenable.
>
>> [1] https://bugs.gentoo.org/828001
>
> Now Fedora is also being hit by the gnutls ABI change due to time_t in
> public interfaces being silently changed. From an IRC conversation I
> had with Dan Berrange and Rich Jones (I think Rich mean i686 below):
>
> <danpb> rjones (IRC): oh wow, the certificates created on i696 are not quite
> right .....
> <danpb> Validity:
> <danpb> Not Before: Sat Sep 05 00:23:57 UTC 2703
> <danpb> Not After: Sun Sep 06 00:23:57 UTC 2703
> <danpb> just a few years too early
> <danpb> i think this is looking like a gnutls regression, downgrading
> gnutls makes it work
> ...
> <danpb> rjones (IRC): hmm, i'm beginning to think gnutls has been miscompiled
> by gcc
> <danpb> gnutls_x509_crt_get_activation_time inside the gnutls verification
> api returns garbage
> <danpb> but the very same call done from a demo program returns the right
> answer
> ...
> <danpb> OMG, gnulib-- has silently changed gnutls to use 64-bit time_t
> <danpb> ...which is an ABI incompatibility because gnutls has public APIs
> which have time_t parameters
> <danpb> so apps talking to gnutls will expect 32-bit time_t, but gnutls is
> processing 64-bit time_t
> <danpb> this is utterly insane
Time to do a mass rebuild and mass SONAME bump of everything shipped as 32-bits?
--
Sincerely,
Demi Marie Obenour (she/her/hers)
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- Re: On time64 and Large File Support, Eric Blake, 2023/03/01
- Re: On time64 and Large File Support,
Demi Marie Obenour <=
- Re: On time64 and Large File Support, Daniel P . Berrangé, 2023/03/02
- Re: On time64 and Large File Support, Paul Eggert, 2023/03/02
- Re: On time64 and Large File Support, Richard W.M. Jones, 2023/03/02
- Re: On time64 and Large File Support, Bruno Haible, 2023/03/02
- Re: On time64 and Large File Support, Daniel P . Berrangé, 2023/03/02
- Re: On time64 and Large File Support, Wookey, 2023/03/02
- Re: On time64 and Large File Support, Paul Eggert, 2023/03/03
- Re: On time64 and Large File Support, Wookey, 2023/03/03
- Re: On time64 and Large File Support, Daniel P . Berrangé, 2023/03/03
- Re: On time64 and Large File Support, Arsen Arsenović, 2023/03/04