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Message-ID: <20190731052749.GA9017@brightrain.aerifal.cx>
Date: Wed, 31 Jul 2019 01:27:49 -0400
From: Rich Felker <dalias@...c.org>
To: musl@...ts.openwall.com
Subject: Re: Final (?) time64 proposal
On Mon, Jul 29, 2019 at 05:11:54PM -0400, Rich Felker wrote:
> On Wed, Jul 24, 2019 at 01:31:42AM -0400, Rich Felker wrote:
> > My plan to go ahead looks like:
> >
> > [...]
> > - struct shmid_ds, msqid_ds, semid_ds layout kept, extended with
> > 64-bit time_t's on the ends
>
> This looks like the unnecessarily painful course of action. I worked
> out a grid of all the existing archs' quirks, and except for mips and
> mipsn32, all archs admit a solution that's just endian-swapping the
> time_t members in-place.
This turned out to be false, because the alignment is wrong. Almost
all the time_t's would have to start at offsets that are 4 mod 8. So
in-place use is out, and these structs will all get extended at the
end, as originally planned.
Still using new cmd numbers instead of redirecting symbols.
Rich
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