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-rw-r--r--include/sys/param.h14
-rw-r--r--include/sys/sysctl.h46
2 files changed, 51 insertions, 9 deletions
diff --git a/include/sys/param.h b/include/sys/param.h
index d64f4b9a9..0b0424eb9 100644
--- a/include/sys/param.h
+++ b/include/sys/param.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995, 1996, 1997, 2000, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1997,2000,2001,2003 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
@@ -49,10 +49,16 @@
/* Macros for counting and rounding. */
#ifndef howmany
-# define howmany(x, y) (((x)+((y)-1))/(y))
+# define howmany(x, y) (((x) + ((y) - 1)) / (y))
#endif
-#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
-#define powerof2(x) ((((x)-1)&(x))==0)
+#ifdef __GNUC__
+# define roundup(x, y) (__builtin_constant_p (y) && powerof2 (y) \
+ ? (((x) + (y) - 1) & ~((y) - 1)) \
+ : ((((x) + ((y) - 1)) / (y)) * (y)))
+#else
+# define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
+#endif
+#define powerof2(x) ((((x) - 1) & (x)) == 0)
/* Macros for min/max. */
#define MIN(a,b) (((a)<(b))?(a):(b))
diff --git a/include/sys/sysctl.h b/include/sys/sysctl.h
index bdc8ad215..110efaa76 100644
--- a/include/sys/sysctl.h
+++ b/include/sys/sysctl.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1999, 2002, 2003, 2004 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
@@ -17,16 +17,52 @@
02111-1307 USA. */
#ifndef _SYS_SYSCTL_H
-
#define _SYS_SYSCTL_H 1
-#include <features.h>
-
-__BEGIN_DECLS
+#include <features.h>
#define __need_size_t
#include <stddef.h>
+/* Prevent more kernel headers than necessary to be included. */
+#ifndef _LINUX_KERNEL_H
+# define _LINUX_KERNEL_H 1
+# define __undef_LINUX_KERNEL_H
+#endif
+#ifndef _LINUX_TYPES_H
+# define _LINUX_TYPES_H 1
+# define __undef_LINUX_TYPES_H
+#endif
+#ifndef _LINUX_LIST_H
+# define _LINUX_LIST_H 1
+# define __undef_LINUX_LIST_H
+#endif
+#ifndef __LINUX_COMPILER_H
+# define __LINUX_COMPILER_H 1
+# define __user
+# define __undef__LINUX_COMPILER_H
+#endif
+
#include <linux/sysctl.h>
+#ifdef __undef_LINUX_KERNEL_H
+# undef _LINUX_KERNEL_H
+# undef __undef_LINUX_KERNEL_H
+#endif
+#ifdef __undef_LINUX_TYPES_H
+# undef _LINUX_TYPES_H
+# undef __undef_LINUX_TYPES_H
+#endif
+#ifdef __undef_LINUX_LIST_H
+# undef _LINUX_LIST_H
+# undef __undef_LINUX_LIST_H
+#endif
+#ifdef __undef__LINUX_COMPILER_H
+# undef __LINUX_COMPILER_H
+# undef __user
+# undef __undef__LINUX_COMPILER_H
+#endif
+
+__BEGIN_DECLS
+
/* Read or write system parameters. */
extern int sysctl (int *__name, int __nlen, void *__oldval,
size_t *__oldlenp, void *__newval, size_t __newlen) __THROW;