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SubjectRe: [PATCH v2] getauxval.3: MIPS, AT_BASE_PLATFORM passes ISA level
Michael Kerrisk (man-pages) <mtk.manpages@gmail.com> 于2020年3月26日周四 下午4:12写道:
>
> Hello YunQiang Su
>
> On 3/22/20 10:55 AM, YunQiang Su wrote:
> > Since Linux 5.7, on MIPS, we use AT_BASE_PLATFORM to pass ISA level.
> > The values may be:
> > mips2, mips3, mips4, mips5,
> > mips32, mips32r2, mips32r6,
> > mips64, mips64r2, mips64r6.
> >
> > This behavior is different with PowerPC.
>
> Thank you for the patch. I see that this is scheduled for
> Linux 5.7 (for which the merge window is not yet open).
> How certain is it that the feature will land in 5.7?

It is in mips-next and linux-next now.

>
> Thanks,
>
> Michael
>
> > https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=e585b768da111f2c2d413de6214e83bbdfee8f22
> > Signed-off-by: YunQiang Su <syq@debian.org>
> >
> > ----
> > v1 -> v2: fix typo
> > ---
> > man3/getauxval.3 | 7 ++++---
> > 1 file changed, 4 insertions(+), 3 deletions(-)
> >
> > diff --git a/man3/getauxval.3 b/man3/getauxval.3
> > index 456371c6a..bcc116dd2 100644
> > --- a/man3/getauxval.3
> > +++ b/man3/getauxval.3
> > @@ -60,9 +60,10 @@ values are present on all architectures.
> > The base address of the program interpreter (usually, the dynamic linker).
> > .TP
> > .BR AT_BASE_PLATFORM
> > -A pointer to a string identifying the real platform; may differ from
> > -.BR AT_PLATFORM
> > -(PowerPC only).
> > +A pointer to a string (PowerPC and MIPS only).
> > +On PowerPC, this identifies the real platform; may differ from
> > +.BR AT_PLATFORM "."
> > +On MIPS, this identifies the ISA level (Since 5.7).
> > .TP
> > .BR AT_CLKTCK
> > The frequency with which
> >
>
>
> --
> Michael Kerrisk
> Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
> Linux/UNIX System Programming Training: http://man7.org/training/

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