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From: David Laight <David.Laight@ACULAB.COM>
To: 'Len Brown' <lenb@kernel.org>, Andy Lutomirski <luto@kernel.org>
Cc: Dave Hansen <dave.hansen@intel.com>,
	Greg KH <gregkh@linuxfoundation.org>,
	"Bae, Chang Seok" <chang.seok.bae@intel.com>,
	X86 ML <x86@kernel.org>, LKML <linux-kernel@vger.kernel.org>,
	libc-alpha <libc-alpha@sourceware.org>,
	Florian Weimer <fweimer@redhat.com>,
	Rich Felker <dalias@libc.org>, Kyle Huey <me@kylehuey.com>,
	Keno Fischer <keno@juliacomputing.com>,
	Linux API <linux-api@vger.kernel.org>
Subject: RE: Candidate Linux ABI for Intel AMX and hypothetical new related features
Date: Mon, 12 Apr 2021 07:59:49 +0000	[thread overview]
Message-ID: <7f38dca513424e8ca1d99074ad6c4621@AcuMS.aculab.com> (raw)
In-Reply-To: <CAJvTdK=RFei+b0W89ZTtqoiiR_M0wAJz_EuBTijgEHpacfZS7Q@mail.gmail.com>

From: Len Brown
> Sent: 11 April 2021 20:07
...
> Granted, if you have an application that is statically linked and run
> on new hardware
> and new OS, it can still fail.

That also includes anything compiled and released as a program
binary that must run on older Linux installations.

Such programs have to be compiled with old copies of the system
headers (and probably with an of gcc).

While such programs themselves won't use AVX without checking
for OS support, the glibc code on the installed system might.

Such programs can be modified to run-time detect the required
signal stack size - but cannot rely on glibc to convert
SIGSTKSZ into a function call.

	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)

  reply	other threads:[~2021-04-12  7:59 UTC|newest]

Thread overview: 130+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-26 23:12 Candidate Linux ABI for Intel AMX and hypothetical new related features Andy Lutomirski
2021-03-26 23:18 ` Andy Lutomirski
2021-03-27  3:39   ` Len Brown
2021-03-27  9:14     ` Borislav Petkov
2021-03-27  9:58     ` Greg KH
2021-03-29 15:47       ` Len Brown
2021-03-29 16:38         ` Len Brown
2021-03-29 16:48           ` Florian Weimer
2021-03-29 18:14           ` Andy Lutomirski
2021-03-29 18:16         ` Andy Lutomirski
2021-03-29 22:38           ` Len Brown
2021-03-30  5:08             ` Andy Lutomirski
2021-03-30  5:50               ` Noah Goldstein
2021-03-30 17:01               ` Len Brown
2021-03-30 17:05                 ` Andy Lutomirski
2021-03-30 17:56                   ` Len Brown
2021-03-30 19:12                     ` Dave Hansen
2021-03-30 20:20                       ` Andy Lutomirski
2021-03-30 20:42                         ` Len Brown
2021-03-30 22:01                           ` David Laight
2021-03-31 16:31                             ` Len Brown
2021-03-31 16:53                               ` Andy Lutomirski
2021-03-31 21:42                                 ` Robert O'Callahan
2021-03-31 22:11                                   ` Len Brown
2021-03-31 22:28                                 ` Len Brown
2021-03-31 22:45                                   ` Andy Lutomirski
2021-04-09 20:52                                     ` Len Brown
2021-04-09 21:44                                       ` Andy Lutomirski
2021-04-11 19:07                                         ` Len Brown
2021-04-12  7:59                                           ` David Laight [this message]
2021-04-12 12:19                                           ` Borislav Petkov
2021-04-12 17:14                                           ` Sean Christopherson
2021-03-31 22:52                                   ` Borislav Petkov
2021-04-09 20:55                                     ` Len Brown
2021-03-28  0:53   ` Thomas Gleixner
2021-03-29  7:27     ` Peter Zijlstra
2021-03-29 15:06     ` Dave Hansen
2021-03-31  8:24 ` Borislav Petkov
     [not found] ` <87lf9nk2ku.fsf@oldenburg.str.redhat.com>
2021-04-12 14:31   ` Borislav Petkov
2021-04-12 14:38     ` Florian Weimer
2021-04-12 15:08       ` Borislav Petkov
2021-04-12 15:10       ` Andy Lutomirski
2021-04-12 15:21   ` Andy Lutomirski
2021-04-12 23:46     ` Len Brown
2021-04-13  0:17       ` Thomas Gleixner
2021-04-13  1:25         ` Len Brown
2021-04-13  3:43       ` Willy Tarreau
2021-04-13 19:51         ` Len Brown
2021-04-14  9:58           ` Borislav Petkov
2021-04-14 10:06             ` Willy Tarreau
2021-04-14 10:08               ` Borislav Petkov
2021-04-14 21:57             ` Len Brown
2021-04-15  4:43               ` Borislav Petkov
2021-04-15  5:29                 ` Willy Tarreau
2021-04-15  5:47                   ` Borislav Petkov
2021-04-16 22:05                     ` Len Brown
2021-04-19 14:14                       ` Borislav Petkov
2021-04-19 18:18                         ` Len Brown
2021-04-19 19:15                           ` Borislav Petkov
2021-04-19 21:33                             ` Len Brown
2021-04-19 21:58                               ` Borislav Petkov
2021-04-23 19:35                                 ` Len Brown
2021-04-23 19:57                                   ` Borislav Petkov
2021-05-02 15:27                                     ` Len Brown
2021-05-03  5:18                                       ` Florian Weimer
2021-05-03 13:43                                         ` Dave Hansen
2021-05-03 13:47                                           ` Florian Weimer
2021-05-03 14:14                                             ` Dave Hansen
2021-05-07 18:44                                           ` Thomas Gleixner
2021-05-07 18:50                                             ` Andy Lutomirski
2021-05-07 19:22                                               ` Thomas Gleixner
2021-05-08  9:45                                       ` Thomas Gleixner
2021-05-18 20:39                                         ` Len Brown
2021-05-19 23:29                                           ` Andy Lutomirski
2021-05-20 19:16                                             ` Len Brown
2021-05-17  9:45                                       ` Thomas Gleixner
2021-05-17  9:56                                         ` Florian Weimer
2021-05-17 10:18                                           ` Thomas Gleixner
2021-05-21 16:29                                           ` Len Brown
2021-05-17 13:49                                         ` Arjan van de Ven
2021-05-20 15:35                                         ` Len Brown
2021-05-20 20:54                                           ` Thomas Gleixner
2021-05-20 21:13                                             ` Dave Hansen
2021-05-20 21:41                                               ` Len Brown
2021-05-20 22:53                                                 ` Dave Hansen
2021-05-21  9:41                                                   ` Thomas Gleixner
2021-05-21 14:44                                                   ` Florian Weimer
2021-05-21 14:49                                                     ` Peter Zijlstra
2021-06-23 15:06                                                       ` Florian Weimer
2021-06-23 23:11                                                         ` Len Brown
2021-06-28 10:14                                                           ` Enrico Weigelt, metux IT consult
2021-06-28 12:49                                                             ` Florian Weimer
2021-06-30 12:22                                                               ` Enrico Weigelt, metux IT consult
2021-06-30 12:41                                                                 ` Willy Tarreau
2021-06-30 13:55                                                                 ` Arjan van de Ven
2021-06-30 15:20                                                                   ` Len Brown
2021-06-30 15:25                                                                   ` Enrico Weigelt, metux IT consult
2021-05-21 16:14                                                     ` Dave Hansen
2021-05-21 16:19                                                       ` Florian Weimer
2021-05-21 16:26                                                         ` Len Brown
2021-05-21 16:28                                                         ` Dave Hansen
2021-05-21 16:31                                                         ` Andy Lutomirski
2021-05-21 19:10                                                           ` Thomas Gleixner
2021-05-21 20:07                                                             ` Andy Lutomirski
2021-05-21 21:43                                                               ` Thomas Gleixner
2021-05-21 22:07                                                             ` Len Brown
2021-05-21 22:46                                                               ` Thomas Gleixner
2021-05-21 23:31                                                                 ` Len Brown
2021-05-22  7:16                                                                   ` Florian Weimer
2021-05-22 23:55                                                                     ` Andy Lutomirski
2021-05-21 23:06                                                               ` Dave Hansen
2021-05-21 23:08                                                                 ` Len Brown
2021-05-21 19:05                                                         ` Thomas Gleixner
2021-05-20 21:22                                             ` Len Brown
2021-05-20 21:41                                               ` Thomas Gleixner
2021-05-20 21:49                                                 ` Len Brown
2021-05-21  9:26                                                   ` Thomas Gleixner
2021-04-19 23:52                               ` Paul Eggert
2021-04-13 20:16       ` Andy Lutomirski
2021-04-13 22:47         ` Len Brown
2021-04-13 22:58           ` Andy Lutomirski
2021-04-14 21:48             ` Len Brown
2021-04-15 16:24               ` Andy Lutomirski
2021-04-15 17:00                 ` Dave Hansen
2021-04-15 17:38                   ` Andy Lutomirski
2021-04-16 21:54                 ` Len Brown
2021-04-16 22:03                   ` Andy Lutomirski
2021-04-16 22:10                     ` Len Brown
2021-04-16 22:14                       ` Andy Lutomirski
2021-04-17  1:57                         ` Len Brown

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