diff options
Diffstat (limited to 'misc')
| -rw-r--r-- | misc/Makefile | 3 | ||||
| -rw-r--r-- | misc/sys/param.h | 101 |
2 files changed, 103 insertions, 1 deletions
diff --git a/misc/Makefile b/misc/Makefile index d35654cc3f..e5e9b9f152 100644 --- a/misc/Makefile +++ b/misc/Makefile @@ -25,7 +25,8 @@ headers := sys/uio.h bits/uio.h sys/ioctl.h bits/ioctls.h bits/ioctl-types.h \ sys/ptrace.h sys/file.h sys/dir.h sys/cdefs.h \ ar.h a.out.h libgen.h stab.h bits/stab.def sgtty.h \ ttyent.h paths.h sys/reboot.h \ - sys/mman.h sys/param.h fstab.h mntent.h search.h err.h error.h \ + sys/mman.h sys/param.h bits/param.h \ + fstab.h mntent.h search.h err.h error.h \ sys/queue.h sysexits.h syscall.h sys/syscall.h sys/swap.h \ sys/select.h ustat.h sys/ustat.h bits/ustat.h sys/sysinfo.h \ regexp.h bits/select.h bits/mman.h sys/xattr.h \ diff --git a/misc/sys/param.h b/misc/sys/param.h new file mode 100644 index 0000000000..0eafd680da --- /dev/null +++ b/misc/sys/param.h @@ -0,0 +1,101 @@ +/* Compatibility header for old-style Unix parameters and limits. + Copyright (C) 1995-2012 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SYS_PARAM_H +#define _SYS_PARAM_H 1 + +#define __need_NULL +#include <stddef.h> + +#include <sys/types.h> +#include <limits.h> +#include <endian.h> /* Define BYTE_ORDER et al. */ +#include <signal.h> /* Define NSIG. */ + +/* This file defines some things in system-specific ways. */ +#include <bits/param.h> + + +/* BSD names for some <limits.h> values. */ + +#define NBBY CHAR_BIT + +#if !defined NGROUPS && defined NGROUPS_MAX +# define NGROUPS NGROUPS_MAX +#endif +#if !defined MAXSYMLINKS && defined SYMLOOP_MAX +# define MAXSYMLINKS SYMLOOP_MAX +#endif +#if !defined CANBSIZ && defined MAX_CANON +# define CANBSIZ MAX_CANON +#endif +#if !defined MAXPATHLEN && defined PATH_MAX +# define MAXPATHLEN PATH_MAX +#endif +#if !defined NOFILE && defined OPEN_MAX +# define NOFILE OPEN_MAX +#endif +#ifndef NCARGS +# ifdef ARG_MAX +# define NCARGS ARG_MAX +# else +/* ARG_MAX is unlimited, but we define NCARGS for BSD programs that want to + compare against some fixed limit. */ +# define NCARGS INT_MAX +# endif +#endif + + +/* Magical constants. */ +#ifndef NOGROUP +# define NOGROUP 65535 /* Marker for empty group set member. */ +#endif +#ifndef NODEV +# define NODEV ((dev_t) -1) /* Non-existent device. */ +#endif + + +/* Unit of `st_blocks'. */ +#define DEV_BSIZE 512 + + +/* Bit map related macros. */ +#define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY)) +#define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) +#define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY))) +#define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) + +/* Macros for counting and rounding. */ +#ifndef howmany +# define howmany(x, y) (((x) + ((y) - 1)) / (y)) +#endif +#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)) +#define MAX(a,b) (((a)>(b))?(a):(b)) + + +#endif /* sys/param.h */ |