Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.kernel > #84410 > unrolled thread

Bug#1086503: linux: Please get HWCAP and HWCAP2 in sync between 32bits and 64bits architecture

Started byBastien Roucariès <rouca@debian.org>
First post2024-10-31 12:40 +0100
Last post2024-11-05 12:30 +0100
Articles 5 — 3 participants

Back to article view | Back to linux.debian.kernel

Contents

  Bug#1086503: linux: Please get HWCAP and HWCAP2 in sync between 32bits and 64bits architecture Bastien Roucariès <rouca@debian.org> - 2024-10-31 12:40 +0100
    Bug#1086503: The underlying request may be to add 32 bit equivalents of 64 bit caps where the feature is actually accessible from 32 bits Bastien Roucariès <rouca@debian.org> - 2024-10-31 13:50 +0100
      Bug#1086503: The underlying request may be to add 32 bit equivalents of 64 bit caps where the feature is actually accessible from 32 bits Ben Hutchings <ben@decadent.org.uk> - 2024-11-03 22:00 +0100
      Bug#1086503: The underlying request may be to add 32 bit equivalents of 64 bit caps where the feature is actually accessible from 32 bits Bastien Roucariès <rouca@debian.org> - 2024-11-05 12:30 +0100
    Processed: Re: The underlying request may be to add 32 bit  equivalents of 64 bit caps where the feature is actually accessible from  32 bits "Debian Bug Tracking System" <owner@bugs.debian.org> - 2024-11-05 12:30 +0100

#84410 — Bug#1086503: linux: Please get HWCAP and HWCAP2 in sync between 32bits and 64bits architecture

FromBastien Roucariès <rouca@debian.org>
Date2024-10-31 12:40 +0100
SubjectBug#1086503: linux: Please get HWCAP and HWCAP2 in sync between 32bits and 64bits architecture
Message-ID<JDBGV-5DPu-3@gated-at.bofh.it>

[Multipart message — attachments visible in raw view] — view raw

Source: linux
Severity: wishlist
Tags: upstream
affects: src:isa-support

Dear Maintainer,


HWCAP and HWCAP2 (used by getauxval) are not in sync between 32bits and 64bits
arch for the same processor.

for arm64 for instance see https://docs.kernel.org/arch/arm64/elf_hwcaps.html
they are more hardware caps than for arm32

Thus it is not possible to check under arm32 is a feature is enable.

Can we get an audit of other arch and get the 32/64bits in sync about feature
returned by the kernel ?

Thanks

Rouca

[toc] | [next] | [standalone]

#84411 — Bug#1086503: The underlying request may be to add 32 bit equivalents of 64 bit caps where the feature is actually accessible from 32 bits

FromBastien Roucariès <rouca@debian.org>
Date2024-10-31 13:50 +0100
SubjectBug#1086503: The underlying request may be to add 32 bit equivalents of 64 bit caps where the feature is actually accessible from 32 bits
Message-ID<JDCMF-5ErW-1@gated-at.bofh.it>
In reply to#84410

[Multipart message — attachments visible in raw view] — view raw

Hi;

In order to be clear the underlying request is to add 32 bit equivalents of 64 bit caps where the feature is actually accessible from 32 bits and make sense

the second wave of crypto instructions (sha3, sha512) was not added to arm32

Bastien

[toc] | [prev] | [next] | [standalone]

#84432 — Bug#1086503: The underlying request may be to add 32 bit equivalents of 64 bit caps where the feature is actually accessible from 32 bits

FromBen Hutchings <ben@decadent.org.uk>
Date2024-11-03 22:00 +0100
SubjectBug#1086503: The underlying request may be to add 32 bit equivalents of 64 bit caps where the feature is actually accessible from 32 bits
Message-ID<JEPRv-6q3e-1@gated-at.bofh.it>
In reply to#84411

[Multipart message — attachments visible in raw view] — view raw

On Thu, 2024-10-31 at 12:38 +0000, Bastien Roucariès wrote:
> Hi;
> 
> In order to be clear the underlying request is to add 32 bit equivalents of 64 bit caps where the feature is actually accessible from 32 bits and make sense
> 
> the second wave of crypto instructions (sha3, sha512) was not added to arm32

Please contact upstream (linux-arm-kernel@lists.infradead.org) directly
to make this request.

Ben.

-- 
Ben Hutchings
I say we take off; nuke the site from orbit.
It's the only way to be sure.

[toc] | [prev] | [next] | [standalone]

#84442 — Bug#1086503: The underlying request may be to add 32 bit equivalents of 64 bit caps where the feature is actually accessible from 32 bits

FromBastien Roucariès <rouca@debian.org>
Date2024-11-05 12:30 +0100
SubjectBug#1086503: The underlying request may be to add 32 bit equivalents of 64 bit caps where the feature is actually accessible from 32 bits
Message-ID<JFpUZ-6Mvp-1@gated-at.bofh.it>
In reply to#84411

[Multipart message — attachments visible in raw view] — view raw

control: forwarded -1 http://lists.infradead.org/pipermail/linux-arm-kernel/2024-November/976054.html

[toc] | [prev] | [next] | [standalone]

#84441 — Processed: Re: The underlying request may be to add 32 bit equivalents of 64 bit caps where the feature is actually accessible from 32 bits

From"Debian Bug Tracking System" <owner@bugs.debian.org>
Date2024-11-05 12:30 +0100
SubjectProcessed: Re: The underlying request may be to add 32 bit equivalents of 64 bit caps where the feature is actually accessible from 32 bits
Message-ID<JFpV0-6Mvp-9@gated-at.bofh.it>
In reply to#84410
Processing control commands:

> forwarded -1 http://lists.infradead.org/pipermail/linux-arm-kernel/2024-November/976054.html
Bug #1086503 [src:linux] linux: Please get HWCAP and HWCAP2 in sync between 32bits and 64bits architecture
Set Bug forwarded-to-address to 'http://lists.infradead.org/pipermail/linux-arm-kernel/2024-November/976054.html'.

-- 
1086503: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1086503
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

[toc] | [prev] | [standalone]

Back to top | Article view | linux.debian.kernel

csiph-web