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From: David Laight <David.Laight@ACULAB.COM>
To: "'Jason A. Donenfeld'" <Jason@zx2c4.com>,
	Kees Cook <keescook@chromium.org>
Cc: Borislav Petkov <bp@alien8.de>,
	Arvind Sankar <nivedita@alum.mit.edu>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	"Ingo Molnar" <mingo@redhat.com>, X86 ML <x86@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Thomas Lendacky <Thomas.Lendacky@amd.com>,
	Mauro Rossi <issor.oruam@gmail.com>, Michael Matz <matz@suse.de>,
	"Masahiro Yamada" <masahiroy@kernel.org>
Subject: RE: [PATCH] Documentation/changes: Raise minimum supported binutils version to 2.23
Date: Wed, 25 Mar 2020 17:33:18 +0000	[thread overview]
Message-ID: <23ed7ec83ff147d7bfd905d9dab27648@AcuMS.aculab.com> (raw)
In-Reply-To: <CAHmME9o3Vef022V6fb1b3JOFOmjKXBBroiYU83kOewKHJ3MyQA@mail.gmail.com>

From: Jason A. Donenfeld
> Sent: 23 March 2020 21:12
...
> By the way, while we're in the process of updating dependencies, what
> if we ratched the minimum binutils on x86 up to 2.25 (which is still
> quite old)? In this case, we could get rid of *all* of the CONFIG_AS_*
> ifdefs throughout.

Even my system has 2.23.2, although I've had to pull in a later
version of old of the elf libraries at some point.

Unfortunately we have to support customers who insist on using
very old distributions - and it is easiest to build things on
systems with similar old userspace.
The memcpy/memmove fiasco and changes to C++ 'character traits'
make anything else almost impossible.

Unnecessary minimum versions do cause grief.

	David

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

  reply	other threads:[~2020-03-25 17:33 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-10 20:23 [PATCH] x86/tools/relocs: Add _etext and __end_of_kernel_reserve to S_REL Arvind Sankar
2020-01-10 20:38 ` Borislav Petkov
2020-01-10 20:50   ` Arvind Sankar
2020-01-10 21:50     ` [PATCH v2] " Arvind Sankar
2020-01-10 21:52       ` Arvind Sankar
2020-01-11 13:02     ` [PATCH] " Borislav Petkov
2020-01-11 17:20       ` Arvind Sankar
2020-01-11 17:32         ` Arvind Sankar
2020-01-13 13:43         ` Borislav Petkov
2020-01-13 16:13           ` Arvind Sankar
2020-01-13 16:38             ` Borislav Petkov
2020-01-13 17:59               ` Arvind Sankar
2020-01-13 18:08                 ` Borislav Petkov
2020-01-14  4:17                   ` Arvind Sankar
2020-01-14 11:25                     ` Borislav Petkov
2020-01-14 16:32                       ` Arvind Sankar
2020-01-14  4:08               ` Arvind Sankar
2020-01-13 19:53             ` [PATCH v3] x86/vmlinux: Fix vmlinux.lds.S with pre-2.23 binutils Arvind Sankar
2020-01-13 21:46               ` Tom Lendacky
2020-01-13 23:06                 ` Arvind Sankar
2020-01-14  1:53               ` Kees Cook
2020-01-14  1:57                 ` H. Peter Anvin
2020-01-14  2:20                   ` Kees Cook
2020-01-14  3:58                   ` Arvind Sankar
2020-01-14  5:05                     ` hpa
2020-01-14 16:51                 ` Borislav Petkov
2020-01-14 21:50                   ` hpa
2020-01-15  0:21                   ` Arvind Sankar
2020-01-15 12:24                     ` Borislav Petkov
2020-03-16 16:02                       ` [PATCH] Documentation/changes: Raise minimum supported binutils version to 2.23 Borislav Petkov
2020-03-16 20:54                         ` Kees Cook
2020-03-23 20:44                         ` Jason A. Donenfeld
2020-03-23 20:51                           ` Kees Cook
2020-03-23 21:11                             ` Jason A. Donenfeld
2020-03-25 17:33                               ` David Laight [this message]
2020-03-24  9:02                             ` Masahiro Yamada
2020-03-24  9:12                               ` Masahiro Yamada
2020-03-24 15:38                                 ` Arvind Sankar
2020-03-24 17:31                                   ` Masahiro Yamada
2020-03-24 21:36                                     ` Arvind Sankar
2020-03-24  9:14                               ` Borislav Petkov
2020-03-24  9:40                                 ` Masahiro Yamada
2020-03-24 12:00                                   ` Borislav Petkov
2020-03-24 16:22                                 ` Jason A. Donenfeld
2020-03-24 16:28                                   ` Borislav Petkov
2020-03-24 16:37                                     ` Linus Torvalds
2020-03-24 16:48                                       ` Borislav Petkov
2020-03-24 21:42                                         ` Arvind Sankar
2020-03-24 22:01                                           ` Arvind Sankar
2020-03-24 22:14                                           ` Linus Torvalds
2020-03-24 23:49                                             ` Arvind Sankar
2020-03-24 17:53                                       ` Kees Cook
2020-03-23 20:50                         ` [PATCH] Documentation/changes: Raise minimum supported binutilsa " Nick Desaulniers
2020-01-13 23:38       ` [PATCH] x86/tools/relocs: Add _etext and __end_of_kernel_reserve to S_REL Arvind Sankar
2020-01-10 20:56   ` Kees Cook
     [not found]     ` <CAEQFVGa4fksPRtiLtBckSgbJY_JSHr07hoy5+5w-pAYym16YVg@mail.gmail.com>
2020-01-11 19:40       ` Fwd: " Mauro Rossi

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