Re: [PATCH][RFC] global errno considered harmful

Andreas Schwab
2001-12-31T16:48:39Z

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, Schanzäckerstr. 10, D-90443 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5