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authorRoland McGrath <roland@hack.frob.com>2012-08-17 09:55:17 -0700
committerRoland McGrath <roland@hack.frob.com>2012-08-17 09:55:17 -0700
commite66a42f57fd20d1c7bbdc5f7937831d13bcf709b (patch)
tree6aba9ac56780e910339abe7a18ccb80f466ee3d0 /misc
parentb7c08a66f6b8855ce93743a0f4587667301fa8f9 (diff)
downloadglibc-e66a42f57fd20d1c7bbdc5f7937831d13bcf709b.tar.gz
Split sys/param.h out into common file and sysdeps bits/param.h file.
Diffstat (limited to 'misc')
-rw-r--r--misc/Makefile3
-rw-r--r--misc/sys/param.h101
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 */