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Re: [PATCH v9] y2038: Introduce the __ASSUME_TIME64_SYSCALLS define
- From: Joseph Myers <joseph at codesourcery dot com>
- To: Florian Weimer <fweimer at redhat dot com>
- Cc: Lukasz Majewski <lukma at denx dot de>, Rich Felker <dalias at libc dot org>, Zack Weinberg <zackw at panix dot com>, Alistair Francis <alistair dot francis at wdc dot com>, GNU C Library <libc-alpha at sourceware dot org>, Alistair Francis <alistair23 at gmail dot com>
- Date: Wed, 4 Sep 2019 16:49:19 +0000
- Subject: Re: [PATCH v9] y2038: Introduce the __ASSUME_TIME64_SYSCALLS define
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- References: <20190827173015.24370-1-alistair.francis@wdc.com> <CAKCAbMiYinyQ_Gdcu94rPCm6PNw6hdq+H_dhzeADa89v2z13-A@mail.gmail.com> <alpine.DEB.2.21.1908271926030.31674@digraph.polyomino.org.uk> <20190830133818.GI9017@brightrain.aerifal.cx> <alpine.DEB.2.21.1908301630420.5568@digraph.polyomino.org.uk> <CAKCAbMjHbcM=8MvLd2CXA=EyT_iDanzsATMLuiMC=wtgTqOr+A@mail.gmail.com> <20190830170940.GL9017@brightrain.aerifal.cx> <CAKCAbMjVG9=wPr-U-Hac3R0j_1Ks8ueRe+sBabjROfNnXSQ8JA@mail.gmail.com> <20190830182650.GM9017@brightrain.aerifal.cx> <871rwwp7dm.fsf@oldenburg2.str.redhat.com> <20190904125015.GB9017@brightrain.aerifal.cx> <87mufknm8i.fsf@oldenburg2.str.redhat.com> <20190904181410.5caf6feb@jawa> <87pnkgm2tf.fsf@oldenburg2.str.redhat.com>
On Wed, 4 Sep 2019, Florian Weimer wrote:
> * Lukasz Majewski:
>
> > There was also a conclusion regarding explicit clearing of the padding
> > if necessary - kernel shall do it (or to be more precise - kernel will
> > perform modulo operation of the number passed to it from glibc if
> > needed).
>
> But that's not what the kernel ended up doing, right?
My understanding is that it did - except for the case of compat syscalls
under 64-bit kernels 5.1.0 through 5.1.4.
--
Joseph S. Myers
joseph@codesourcery.com