From: Steven Rostedt <rostedt@goodmis.org>
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Borislav Petkov <bp@alien8.de>,
Andrew Morton <akpm@linux-foundation.org>,
Dave Jones <davej@redhat.com>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: SyS symbol munging.
Date: Fri, 10 May 2013 16:56:22 -0400 [thread overview]
Message-ID: <20130510205622.GD9583@home.goodmis.org> (raw)
In-Reply-To: <20130510200503.GM25399@ZenIV.linux.org.uk>
On Fri, May 10, 2013 at 09:05:03PM +0100, Al Viro wrote:
> On Fri, May 10, 2013 at 09:55:00PM +0200, Borislav Petkov wrote:
> > On Fri, May 10, 2013 at 12:35:10PM -0700, Andrew Morton wrote:
> > > I forget who did this initially and peeling back those layers with git
> > > is tiresome.
> >
> > 1a94bc34768e4 from 2009, although those SyS* things started appearing in
> > stack traces only recently AFAIR.
>
> Note that both sys_something and SyS_something end up in vmlinux symbol
> table, refering to the same address. AFAICS, what matters is which one
> goes first. May be even linker-dependent...
Actually, it's the first one that kallsyms finds in its binary search.
If the table is layed out a little differently, it may find the first
one or the second one.
-- Steve
next prev parent reply other threads:[~2013-05-10 20:56 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-10 19:24 SyS symbol munging Dave Jones
2013-05-10 19:35 ` Andrew Morton
2013-05-10 19:45 ` Randy Dunlap
2013-05-10 19:55 ` Borislav Petkov
2013-05-10 20:05 ` Al Viro
2013-05-10 20:17 ` Borislav Petkov
2013-05-10 20:56 ` Steven Rostedt [this message]
2013-05-10 21:17 ` Al Viro
2013-05-10 19:40 ` Borislav Petkov
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