From: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
To: "Eric W. Biederman" <ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
Cc: Rich Felker <dalias-/miJ2pyFWUyWIDz0JBNUog@public.gmane.org>,
Al Viro <viro-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>,
David Drysdale <drysdale-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
"Michael Kerrisk (man-pages)"
<mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org>,
Meredydd Luff <meredydd-zPN50pYk8eUaUu29zAJCuw@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
Stephen Rothwell <sfr-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org>,
Oleg Nesterov <oleg-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
"H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>,
Kees Cook <keescook-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
X86 ML <x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
linux-arch <linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Linux API <linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
sparclinux-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCHv10 man-pages 5/5] execveat.2: initial man page for execveat(2)
Date: Sun, 11 Jan 2015 03:02:56 -0800 [thread overview]
Message-ID: <20150111110256.GA18765@infradead.org> (raw)
In-Reply-To: <87oaq6oypl.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
On Sat, Jan 10, 2015 at 08:09:10PM -0600, Eric W. Biederman wrote:
> In implementation /proc/self/exe is a named rather than a numbered file
> descriptor. Essentially when loading an elf executable the file
> descriptor is duped to the name /proc/self/exe. The implementation
> otherwise is the same as /proc/self/fd/N.
>
> The downside of course is that I expect if we were actually to change
> /proc/self/exe from to point at the script instead of the shell some
> piece of software somewhere would come melting down. I am totally not
> ready to consider that kind of mine field today.
We could add a /proc/self/script that points to the script, and either
is not available or still points to the executable if we are not running
a script.
next prev parent reply other threads:[~2015-01-11 11:02 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-24 11:53 [PATCHv10 0/5] syscalls,x86,sparc: Add execveat() system call David Drysdale
2014-11-24 11:53 ` [PATCHv10 1/5] syscalls: implement " David Drysdale
2014-11-24 11:53 ` [PATCHv10 2/5] x86: Hook up execveat " David Drysdale
[not found] ` <1416830039-21952-3-git-send-email-drysdale-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2014-11-24 12:45 ` Thomas Gleixner
2014-11-24 17:06 ` Dan Carpenter
2014-11-24 18:26 ` David Drysdale
[not found] ` <CAHse=S-DS=NGC619Uhzkbd-EKa0D+HgBq3rE1czmLdoxAFswPg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-11-25 12:16 ` Dan Carpenter
2014-11-24 18:53 ` Thomas Gleixner
2014-11-24 11:53 ` [PATCHv10 3/5] syscalls: add selftest for execveat(2) David Drysdale
2014-11-24 11:53 ` [PATCHv10 4/5] sparc: Hook up execveat system call David Drysdale
2014-11-24 18:36 ` David Miller
2014-11-24 11:53 ` [PATCHv10 man-pages 5/5] execveat.2: initial man page for execveat(2) David Drysdale
2015-01-09 15:47 ` Michael Kerrisk (man-pages)
2015-01-09 16:13 ` Rich Felker
[not found] ` <20150109161302.GQ4574-C3MtFaGISjmo6RMmaWD+6Sb1p8zYI1N1@public.gmane.org>
2015-01-09 17:46 ` David Drysdale
[not found] ` <CAHse=S88Jy5ZKM_VY5onfvxX7dTMngnxuHfuLeSuzvKvQNP19A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-01-09 20:48 ` Rich Felker
2015-01-09 20:56 ` Al Viro
[not found] ` <20150109205626.GK22149-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-01-09 20:59 ` Rich Felker
[not found] ` <20150109205926.GT4574-C3MtFaGISjmo6RMmaWD+6Sb1p8zYI1N1@public.gmane.org>
2015-01-09 21:09 ` Al Viro
2015-01-09 21:28 ` Rich Felker
2015-01-09 21:50 ` Al Viro
2015-01-09 22:17 ` Rich Felker
2015-01-09 22:33 ` Al Viro
2015-01-09 22:42 ` Rich Felker
[not found] ` <20150109224252.GY4574-C3MtFaGISjmo6RMmaWD+6Sb1p8zYI1N1@public.gmane.org>
2015-01-09 22:57 ` Al Viro
2015-01-09 23:12 ` Rich Felker
2015-01-09 23:24 ` Andy Lutomirski
2015-01-09 23:37 ` Rich Felker
2015-01-10 0:01 ` Al Viro
2015-01-09 23:36 ` Al Viro
[not found] ` <20150109233644.GR22149-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2015-01-10 3:03 ` Al Viro
2015-01-10 3:41 ` Rich Felker
2015-01-10 4:14 ` Al Viro
2015-01-10 5:57 ` Rich Felker
2015-01-10 22:27 ` Eric W. Biederman
2015-01-11 1:15 ` Rich Felker
2015-01-11 2:09 ` Eric W. Biederman
[not found] ` <87oaq6oypl.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-01-11 11:02 ` Christoph Hellwig [this message]
2015-01-12 14:18 ` David Drysdale
[not found] ` <20150109212852.GU4574-C3MtFaGISjmo6RMmaWD+6Sb1p8zYI1N1@public.gmane.org>
2015-01-09 22:13 ` Eric W. Biederman
2015-01-09 22:38 ` Rich Felker
[not found] ` <20150109223843.GX4574-C3MtFaGISjmo6RMmaWD+6Sb1p8zYI1N1@public.gmane.org>
2015-01-10 1:17 ` Eric W. Biederman
[not found] ` <87mw5rtowa.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-01-10 1:33 ` Rich Felker
2015-01-12 11:33 ` David Drysdale
2015-01-12 16:07 ` Rich Felker
2015-01-10 7:13 ` Michael Kerrisk (man-pages)
2015-01-09 21:20 ` Eric W. Biederman
[not found] ` <877fwvy7ln.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2015-01-09 21:31 ` Rich Felker
2015-01-10 7:43 ` Michael Kerrisk (man-pages)
2015-01-10 8:27 ` Michael Kerrisk (man-pages)
2015-01-10 13:31 ` Rich Felker
2015-01-10 7:38 ` Michael Kerrisk (man-pages)
2015-01-09 18:02 ` David Drysdale
[not found] ` <CAHse=S9kRj00eRbB+7DQd39Cso1O2LcmZpBVCbuUa9EwRQKv_w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-01-10 7:56 ` Michael Kerrisk (man-pages)
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