diff options
Diffstat (limited to 'include/sys')
| -rw-r--r-- | include/sys/param.h | 14 | ||||
| -rw-r--r-- | include/sys/sysctl.h | 46 |
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; |