All of lore.kernel.org
 help / color / mirror / Atom feed
From: Florian Weimer <fweimer@redhat.com>
To: Daniel Colascione <dancol@google.com>
Cc: "Michael Kerrisk \(man-pages\)" <mtk.manpages@gmail.com>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Joel Fernandes <joelaf@google.com>,
	Linux API <linux-api@vger.kernel.org>, Willy Tarreau <w@1wt.eu>,
	Vlastimil Babka <vbabka@suse.cz>,
	"Carlos O'Donell" <carlos@redhat.com>,
	"libc-alpha\@sourceware.org" <libc-alpha@sourceware.org>
Subject: Re: Official Linux system wrapper library?
Date: Mon, 12 Nov 2018 09:11:10 +0100	[thread overview]
Message-ID: <875zx2vhpd.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <CAKOZues5SEESpJU=6MDTrPXTA1KTZFGNQE4Lw4t0fO-WBTU62w@mail.gmail.com> (Daniel Colascione's message of "Sun, 11 Nov 2018 06:22:59 -0800")

* Daniel Colascione:

> If the kernel provides a system call, libc should provide a C wrapper
> for it, even if in the opinion of the libc maintainers, that system
> call is flawed.

It's not that simple, I think.  What about bdflush?  socketcall?
getxpid?  osf_gettimeofday?  set_robust_list?  There are quite a few
irregularities, and some editorial discretion appears to be unavoidable.

Even if we were to provide perfectly consistent system call wrappers
under separate names, we'd still expose different calling conventions
for things like off_t to applications, which would make using some of
the system calls quite difficult and surprisingly non-portable.

Thanks,
Florian

WARNING: multiple messages have this Message-ID (diff)
From: Florian Weimer <fweimer@redhat.com>
To: Daniel Colascione <dancol@google.com>
Cc: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Joel Fernandes <joelaf@google.com>,
	Linux API <linux-api@vger.kernel.org>, Willy Tarreau <w@1wt.eu>,
	Vlastimil Babka <vbabka@suse.cz>,
	Carlos O'Donell <carlos@redhat.com>,
	"libc-alpha@sourceware.org" <libc-alpha@sourceware.org>
Subject: Re: Official Linux system wrapper library?
Date: Mon, 12 Nov 2018 09:11:10 +0100	[thread overview]
Message-ID: <875zx2vhpd.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <CAKOZues5SEESpJU=6MDTrPXTA1KTZFGNQE4Lw4t0fO-WBTU62w@mail.gmail.com> (Daniel Colascione's message of "Sun, 11 Nov 2018 06:22:59 -0800")

* Daniel Colascione:

> If the kernel provides a system call, libc should provide a C wrapper
> for it, even if in the opinion of the libc maintainers, that system
> call is flawed.

It's not that simple, I think.  What about bdflush?  socketcall?
getxpid?  osf_gettimeofday?  set_robust_list?  There are quite a few
irregularities, and some editorial discretion appears to be unavoidable.

Even if we were to provide perfectly consistent system call wrappers
under separate names, we'd still expose different calling conventions
for things like off_t to applications, which would make using some of
the system calls quite difficult and surprisingly non-portable.

Thanks,
Florian

  parent reply	other threads:[~2018-11-12  8:11 UTC|newest]

Thread overview: 99+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-10 18:52 Official Linux system wrapper library? Daniel Colascione
2018-11-10 19:01 ` Willy Tarreau
2018-11-10 19:06   ` Daniel Colascione
2018-11-10 19:33     ` Willy Tarreau
2018-11-10 19:20 ` Greg KH
2018-11-10 19:58   ` Vlastimil Babka
2018-11-12  2:03     ` Carlos O'Donell
2018-11-12  2:24   ` Carlos O'Donell
2018-11-12  2:36     ` Greg KH
2018-11-12 16:08       ` Jonathan Corbet
2018-11-12 20:03         ` Greg KH
2018-12-09  4:38         ` Randy Dunlap
2018-12-10 16:27           ` Jonathan Corbet
2018-12-10 17:39             ` Carlos O'Donell
2018-12-10 23:32               ` Randy Dunlap
2018-11-12  5:46     ` Andy Lutomirski
2018-11-11  6:55 ` Michael Kerrisk (man-pages)
2018-11-11  8:17   ` Willy Tarreau
2018-11-11  8:25     ` Daniel Colascione
2018-11-11 10:40       ` Florian Weimer
2018-11-11 10:40         ` Florian Weimer
2018-11-11 10:30     ` Florian Weimer
2018-11-11 10:30       ` Florian Weimer
2018-11-11 11:02       ` Willy Tarreau
2018-11-11 12:07         ` Florian Weimer
2018-11-11 12:07           ` Florian Weimer
2018-11-11 10:53     ` Michael Kerrisk (man-pages)
2018-11-11 11:02       ` Florian Weimer
2018-11-11 11:02         ` Florian Weimer
2018-11-12 16:43         ` Joseph Myers
2018-11-13 15:15           ` Carlos O'Donell
2018-11-11 11:11       ` Willy Tarreau
2018-11-11 11:46         ` Florian Weimer
2018-11-11 11:46           ` Florian Weimer
2018-11-11 12:09           ` Willy Tarreau
2018-11-12 12:25             ` Florian Weimer
2018-11-12 12:25               ` Florian Weimer
2018-11-12 17:36             ` Joseph Myers
2018-11-12 17:53               ` Greg KH
2018-11-12 18:09                 ` Joseph Myers
2018-11-12 18:14                   ` Randy Dunlap
2018-11-12 16:59           ` Joseph Myers
2018-11-14 12:03           ` Adam Borowski
2018-11-14 12:10             ` Florian Weimer
2018-11-14 12:10               ` Florian Weimer
2018-11-16 21:24         ` Alan Cox
2018-11-11 11:09   ` Florian Weimer
2018-11-11 11:09     ` Florian Weimer
2018-11-11 14:22     ` Daniel Colascione
2018-11-12  1:44       ` Paul Eggert
2018-11-12  8:11       ` Florian Weimer [this message]
2018-11-12  8:11         ` Florian Weimer
2018-11-12 13:19         ` Daniel Colascione
2018-11-12 17:24           ` Zack Weinberg
2018-11-12 18:28             ` Daniel Colascione
2018-11-12 19:11               ` Florian Weimer
2018-11-12 19:11                 ` Florian Weimer
2018-11-12 19:26                 ` Daniel Colascione
2018-11-12 22:51                   ` Joseph Myers
2018-11-12 23:10                     ` Daniel Colascione
2018-11-12 23:26                       ` Joseph Myers
2018-11-12 22:34                 ` Joseph Myers
2018-11-13 19:39           ` Dave Martin
2018-11-13 20:58             ` Andy Lutomirski
2018-11-14 10:54               ` Dave Martin
2018-11-14 11:40                 ` Florian Weimer
2018-11-14 11:40                   ` Florian Weimer
2018-11-15 10:33                   ` Dave Martin
2018-11-14 11:58             ` Szabolcs Nagy
2018-11-14 14:46               ` Andy Lutomirski
2018-11-14 15:07                 ` Florian Weimer
2018-11-14 15:07                   ` Florian Weimer
2018-11-14 17:40                 ` Joseph Myers
2018-11-14 18:13                   ` Paul Eggert
2018-11-14 14:58               ` Carlos O'Donell
2018-11-14 17:15                 ` Arnd Bergmann
2018-11-14 18:30                   ` Joseph Myers
2018-11-14 18:30                     ` Joseph Myers
2018-11-14 15:40               ` Daniel Colascione
2018-11-14 18:15                 ` Joseph Myers
2018-11-14 18:35                   ` Daniel Colascione
2018-11-14 18:47                     ` Joseph Myers
2018-11-15  5:30                       ` Theodore Y. Ts'o
2018-11-15 16:29                         ` Joseph Myers
2018-11-15 17:08                           ` Theodore Y. Ts'o
2018-11-15 17:14                             ` Joseph Myers
2018-11-15 21:00                             ` Carlos O'Donell
2018-11-15 20:34                       ` Carlos O'Donell
2018-11-23 13:34           ` Florian Weimer
2018-11-23 13:34             ` Florian Weimer
2018-11-23 14:11             ` David Newall
2018-11-23 15:23               ` Szabolcs Nagy
2018-11-24  3:41                 ` David Newall
2018-11-28 13:18               ` David Laight
2018-11-23 20:15             ` Daniel Colascione
2018-11-23 23:19               ` Dmitry V. Levin
2018-11-12 12:45       ` Szabolcs Nagy
2018-11-12 14:35         ` Theodore Y. Ts'o
2018-11-12 14:40           ` Daniel Colascione

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=875zx2vhpd.fsf@oldenburg.str.redhat.com \
    --to=fweimer@redhat.com \
    --cc=carlos@redhat.com \
    --cc=dancol@google.com \
    --cc=joelaf@google.com \
    --cc=libc-alpha@sourceware.org \
    --cc=linux-api@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mtk.manpages@gmail.com \
    --cc=vbabka@suse.cz \
    --cc=w@1wt.eu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.