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Date: Thu, 3 Oct 2002 23:32:21 -0600
From: "Brian F. G. Bidulock" <bidulock@openss7.org>
To: Pete Zaitcev <zaitcev@redhat.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: export of sys_call_table
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Pete,

On Fri, 04 Oct 2002, Pete Zaitcev wrote:
> 
> Also, if you are a provider of a binary-only crapware which wants
> to override syscalls, there's one very important document for
> you to see: it's called Fig.1.
> 
> GPLed code has no problem linking with sys_call_table.
> 

The code in question (LiS) is LGPL and open source.  The iBCS
packge is GPL and open source.

You do know that there *is* open source code which is not
contained in the Linux kernel ;)

So, in this case, GPL and LGPL modules do have a problem linking
with the sys_call_table (on RH 8.0 and I suppose some
development kernels only), because the symbol is no longer
exported and no registration procedure was provided for
registering otherwise non-implemented system calls (in
particular the UNIX98 and iBCS/ABI standard putmsg/getmsg
calls).

And what about AFS?  I see that it uses a sys_ni_syscall slot as
well...

In fact all these components are opensource.

--brian

-- 
Brian F. G. Bidulock    ? The reasonable man adapts himself to the ?
bidulock@openss7.org    ? world; the unreasonable one persists in  ?
http://www.openss7.org/ ? trying  to adapt the  world  to himself. ?
                        ? Therefore  all  progress  depends on the ?
                        ? unreasonable man. -- George Bernard Shaw ?
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