Re: [Linux-ia64] pipe() not setting errno.

From: Andreas Schwab <schwab_at_suse.de>
Date: 2002-04-04 23:36:29
Anders Herbjørnsen <anders.herbjornsen@start.no> writes:

|> Hello,
|> 
|> When running out of file descriptors pipe() does return -1 but
|> errno is not set. This is working ok on IA32 systems, but fails
|> on IA64. I've tested this with kernels 2.4.9 and 2.4.18.

It's a bug in glibc, this should fix it:

2002-04-04  Andreas Schwab  <schwab@suse.de>

	* sysdeps/unix/sysv/linux/ia64/pipe.S: Don't overwrite r8 on
	error.

--- sysdeps/unix/sysv/linux/ia64/pipe.S.~1.2.~	2001-07-16 10:45:29.000000000 +0200
+++ sysdeps/unix/sysv/linux/ia64/pipe.S	2002-04-04 14:35:31.000000000 +0200
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2000, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by David Mosberger <davidm@hpl.hp.com>
 
@@ -28,7 +28,7 @@
        cmp.ne p6,p0=-1,r10
        ;;
 (p6)   st4 [r2]=r8,4
-       mov ret0=0
+(p6)   mov ret0=0
        ;;
 (p6)   st4 [r2]=r9
 (p6)   ret

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE GmbH, Deutschherrnstr. 15-19, D-90429 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."
Received on Thu Apr 04 05:36:43 2002

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