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To: Ralf Baechle <ralf@uni-koblenz.de>
Cc: Brian Gerst <bgerst@didntduck.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH][RFC] global errno considered harmful
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X-Yow: ..  My pants just went on a wild rampage through
 a Long Island Bowling Alley!!
From: Andreas Schwab <schwab@suse.de>
Date: 31 Dec 2001 17:48:09 +0100
In-Reply-To: <20011230235939.A16384@dea.linux-mips.net> (Ralf Baechle's message of "Sun, 30 Dec 2001 23:59:39 -0200")
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Ralf Baechle <ralf@uni-koblenz.de> writes:

|> On Sun, Dec 30, 2001 at 05:10:41PM -0500, Brian Gerst wrote:
|> 
|> > > As user application are trying to use unistd.h and expect errno to get
|> > > set properly unistd.h or at least it's syscallX macros will have to be
|> > > made unusable from userspace or silent breakage of such apps rebuild
|> > > against new headers will occur.
|> > 
|> > Userspace should be using glibc's unistd.h.  If it's using the kernel's,
|> > it's broken.
|> 
|> A sufficient number take the unavailability of new syscall in everybody's
|> glibc as a sufficient excuse for broken code.  util-linux as a major
|> offender comes to mind or also e2fsprogs.

Userspace should be using syscall(2/3) for new syscalls.

Andreas.

-- 
Andreas Schwab                                  "And now for something
Andreas.Schwab@suse.de				completely different."
SuSE Labs, SuSE GmbH, Schanz?ckerstr. 10, D-90443 N?rnberg
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