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authorUlrich Drepper <drepper@redhat.com>2008-03-27 15:20:38 +0000
committerUlrich Drepper <drepper@redhat.com>2008-03-27 15:20:38 +0000
commitf96853beafc26d4f030961b0b67a79b5bfad5733 (patch)
treea8480225d97a7eeeccee963ce5a7bae53d296dba /sysdeps/unix/sysv/linux/sys
parentfde15fdc5bea3d66be8fa967031ab89707b08a39 (diff)
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* sysdeps/unix/sysv/linux/bits/local_lim.h: Undefined ARG_MAX if
<linux/limits.h> has defined it. * sysdeps/unix/sysv/linux/sys/param.h: Define NCARGS to the legacy ARG_MAX value and prevent ARG_MAX from being defined by the kernel headers. * sysdeps/unix/sysv/linux/sysconf.c: Define legacy_ARG_MAX and use it instead of ARG_MAX.
Diffstat (limited to 'sysdeps/unix/sysv/linux/sys')
-rw-r--r--sysdeps/unix/sysv/linux/sys/param.h18
1 files changed, 14 insertions, 4 deletions
diff --git a/sysdeps/unix/sysv/linux/sys/param.h b/sysdeps/unix/sysv/linux/sys/param.h
index 0b0424eb90..19c119a2c8 100644
--- a/sysdeps/unix/sysv/linux/sys/param.h
+++ b/sysdeps/unix/sysv/linux/sys/param.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995,1996,1997,2000,2001,2003 Free Software Foundation, Inc.
+/* Copyright (C) 1995-1997,2000,2001,2003,2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -19,10 +19,20 @@
#ifndef _SYS_PARAM_H
#define _SYS_PARAM_H 1
+#ifndef ARG_MAX
+# define __undef_ARG_MAX
+#endif
+
#include <limits.h>
#include <linux/limits.h>
#include <linux/param.h>
+/* The kernel headers defines ARG_MAX. The value is wrong, though. */
+#ifndef __undef_ARG_MAX
+# undef ARG_MAX
+# undef __undef_ARG_MAX
+#endif
+
/* BSD names for some <limits.h> values. */
#define NBBY CHAR_BIT
@@ -31,12 +41,12 @@
#endif
#define MAXSYMLINKS 20
#define CANBSIZ MAX_CANON
-#define NCARGS ARG_MAX
#define MAXPATHLEN PATH_MAX
-/* The following is not really correct but it is a value we used for a
+/* The following are not really correct but it is a value we used for a
long time and which seems to be usable. People should not use NOFILE
- anyway. */
+ and NCARGS anyway. */
#define NOFILE 256
+#define NCARGS 131072
#include <sys/types.h>