Re: Y2038 - best way forward in Debian?
Steve McIntyre <steve@einval.com> 于2020年2月14日周五 上午12:20写道：
>
> YunQiang Su wrote:
> >Ansgar <ansgar@43-1.org> 于2020年2月13日周四 下午5:29写道：
> >>
> >> For arm* and mips*, we mostly seem to be talking about special-purpose
> >> systems where just switching to a new architecture/port doesn't seem to
> >> be that much as a problem as for i386. I think rebuilding the world and
> >> breaking ABI might thus be acceptable there.
> >>
> >> i386 seems different. I think option C above would be the only
> >> realistic proposal so far to fix the time_t problem for (parts of) i386,
> >> but if glibc upstream doesn't want to expose two interfaces then i386
> >> will probably just break.
> >>
> >
> >just redefine time_t to 64bit may also cause a problem:
> > a bad designed and old network protocol which aims only target 32bit system,
> > a binary data packet, may contain time_t:
> > struct {
> > int a;
> > time_t b;
> > }
> >just define time_t to 64 will break this protocol, although it is bad designed.
>
> Oh, sure. We'll find bugs like this, guaranteed.
>
> >Currently, the major task of 32bit ports is to keep compatible with
> >old system/binary.
> >Should we really want to break them?
>
> Well, that's the question. AIUI people seem to be wanting to keep i386
> as-is, due to the existing ecosystem of binaries (both free and
> proprietary), and I've not seen anybody really saying that i386 needs
> to live beyond 2038.
>
> armhf is different, and we want to fix it (/replace it with
> armhf_<foo>) with a 64-bit clean ABI. Where do the other existing
> 32-bit ports sit?
>
> * armel? anybody want to chime in?
> * mipsel?
For mipsel, I prefer keeping align with i386.
>
> I'd like to start making decisions *soon* on what we want to do, so we
> can start work. I'm *hoping* that we might be able to get a new armhf
> port done and released with bullseye, but that's clearly up to the
> release team to make a call on. The longer we leave things, the harder
> that target will be.
>
> --
> Steve McIntyre, Cambridge, UK. steve@einval.com
> Armed with "Valor": "Centurion" represents quality of Discipline,
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>
--
YunQiang Su
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