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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
parentb7c08a66f6b8855ce93743a0f4587667301fa8f9 (diff)
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Split sys/param.h out into common file and sysdeps bits/param.h file.
-rw-r--r--ChangeLog10
-rw-r--r--bits/param.h33
-rw-r--r--include/sys/param.h1
-rw-r--r--misc/Makefile3
-rw-r--r--misc/sys/param.h (renamed from sysdeps/generic/sys/param.h)77
-rw-r--r--sysdeps/mach/hurd/bits/param.h (renamed from sysdeps/mach/hurd/sys/param.h)59
-rw-r--r--sysdeps/unix/sysv/linux/bits/param.h42
-rw-r--r--sysdeps/unix/sysv/linux/sys/param.h82
8 files changed, 144 insertions, 163 deletions
diff --git a/ChangeLog b/ChangeLog
index 672409ef0b..f050559d83 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,15 @@
2012-08-17 Roland McGrath <roland@hack.frob.com>
+ * bits/param.h: New file.
+ * misc/sys/param.h: New file.
+ * include/sys/param.h: New file.
+ * misc/Makefile (headers): Add bits/param.h.
+ * sysdeps/generic/sys/param.h: File removed.
+ * sysdeps/unix/sysv/linux/bits/param.h: New file.
+ * sysdeps/unix/sysv/linux/sys/param.h: File removed.
+ * sysdeps/mach/hurd/bits/param.h: New file.
+ * sysdeps/mach/hurd/sys/param.h: New file.
+
* elf/dl-close.c (_dl_close_worker): Add a cast and a comment to the
last change.
diff --git a/bits/param.h b/bits/param.h
new file mode 100644
index 0000000000..8a2bc71de6
--- /dev/null
+++ b/bits/param.h
@@ -0,0 +1,33 @@
+/* Old-style Unix parameters and limits. Stub version.
+ 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
+# error "Never use <bits/param.h> directly; include <sys/param.h> instead."
+#endif
+
+/* This header is expected to define a few particular macros.
+
+ The traditional BSD macros that correspond directly to POSIX <limits.h>
+ macros don't need to be defined here if <bits/local_lim.h> defines the
+ POSIX limit macro, as the common <sys/param.h> code will define each
+ traditional name to its POSIX name if available.
+
+ This file should define at least:
+
+ EXEC_PAGESIZE
+*/
diff --git a/include/sys/param.h b/include/sys/param.h
new file mode 100644
index 0000000000..7a0cfb1f24
--- /dev/null
+++ b/include/sys/param.h
@@ -0,0 +1 @@
+#include <misc/sys/param.h>
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/sysdeps/generic/sys/param.h b/misc/sys/param.h
index c829e9767a..0eafd680da 100644
--- a/sysdeps/generic/sys/param.h
+++ b/misc/sys/param.h
@@ -1,5 +1,5 @@
-/* Compatibility header for old-style Unix parameters and limits. Stub version.
- Copyright (C) 2012 Free Software Foundation, Inc.
+/* 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
@@ -17,40 +17,61 @@
<http://www.gnu.org/licenses/>. */
#ifndef _SYS_PARAM_H
-
#define _SYS_PARAM_H 1
-#include <features.h>
#define __need_NULL
#include <stddef.h>
#include <sys/types.h>
-#include <errno.h>
-#include <signal.h>
-#include <endian.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. */
-/* BSD names for some <limits.h> values. We do not define the BSD names
- for the values which are not statically limited, such as NOFILE. */
+#define NBBY CHAR_BIT
-#define NBBY CHAR_BIT
-#ifdef NGROUPS_MAX
-# define NGROUPS NGROUPS_MAX
+#if !defined NGROUPS && defined NGROUPS_MAX
+# define NGROUPS NGROUPS_MAX
#endif
-#ifdef SYMLOOP_MAX
-# define MAXSYMLINKS SYMLOOP_MAX
+#if !defined MAXSYMLINKS && defined SYMLOOP_MAX
+# define MAXSYMLINKS SYMLOOP_MAX
#endif
-#define CANBSIZ MAX_CANON /* XXX ? */
-
+#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
+# define NCARGS INT_MAX
+# endif
+#endif
/* Magical constants. */
-#define NOGROUP 65535 /* Marker for empty group set member. */
-#define NODEV ((dev_t) -1) /* Non-existent device. */
+#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. */
@@ -61,18 +82,20 @@
/* Macros for counting and rounding. */
#ifndef howmany
-# define howmany(x, y) (((x)+((y)-1))/(y))
+# 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 roundup(x, y) ((((x)+((y)-1))/(y))*(y))
-#define powerof2(x) ((((x)-1)&(x))==0)
+#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))
-/* Unit of `st_blocks'. */
-#define DEV_BSIZE 512
-
-
-#endif /* sys/param.h */
+#endif /* sys/param.h */
diff --git a/sysdeps/mach/hurd/sys/param.h b/sysdeps/mach/hurd/bits/param.h
index e58d5175bd..d52c1edcb6 100644
--- a/sysdeps/mach/hurd/sys/param.h
+++ b/sysdeps/mach/hurd/bits/param.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 1993-2012 Free Software Foundation, Inc.
+/* Old-style Unix parameters and limits. Hurd version.
+ Copyright (C) 1993-2012 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
@@ -15,6 +16,10 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
+#ifndef _SYS_PARAM_H
+# error "Never use <bits/param.h> directly; include <sys/param.h> instead."
+#endif
+
/* This file is deprecated and is provided only for compatibility with
Unix systems. It is unwise to include this file on programs which
are intended only for GNU systems.
@@ -52,24 +57,6 @@
*/
-#ifndef _SYS_PARAM_H
-
-#define _SYS_PARAM_H 1
-#include <features.h>
-
-#define __need_NULL
-#include <stddef.h>
-
-#include <sys/types.h>
-#include <errno.h>
-#include <signal.h>
-#include <endian.h>
-#include <limits.h>
-#ifdef notyet
-# include <ufs/param.h>
-#endif
-
-
/* What versions of BSD we are compatible with. */
#define BSD 199306 /* System version (year & month). */
#define BSD4_3 1
@@ -81,46 +68,12 @@
/* BSD names for some <limits.h> values. We do not define the BSD names
for the values which are not statically limited, such as NOFILE. */
-#define NBBY CHAR_BIT
-#define NGROUPS NGROUPS_MAX
-#define CANBSIZ MAX_CANON /* XXX ? */
-
-/* ARG_MAX is unlimited, but we define NCARGS for BSD programs that want to
- compare against some fixed limit. */
-#define NCARGS INT_MAX
/* There is nothing quite equivalent in GNU to Unix "mounts", but there is
no limit on the number of simultaneously attached filesystems. */
#define NMOUNT INT_MAX
-/* Magical constants. */
-#define NOGROUP 65535 /* Marker for empty group set member. */
-#define NODEV ((dev_t) -1) /* Non-existent device. */
-
-
-/* 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
-#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
-#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))
-
-
-/* Unit of `st_blocks'. */
-#define DEV_BSIZE 512
-
-
/* Scale factor for scaled integers used to count %cpu time and load avgs.
The number of CPU `tick's that map to a unique `%age' can be expressed
diff --git a/sysdeps/unix/sysv/linux/bits/param.h b/sysdeps/unix/sysv/linux/bits/param.h
new file mode 100644
index 0000000000..36ca088e5a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bits/param.h
@@ -0,0 +1,42 @@
+/* Old-style Unix parameters and limits. Linux version.
+ 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
+# error "Never use <bits/param.h> directly; include <sys/param.h> instead."
+#endif
+
+#ifndef ARG_MAX
+# define __undef_ARG_MAX
+#endif
+
+#include <linux/limits.h>
+#include <linux/param.h>
+
+/* The kernel headers define ARG_MAX. The value is wrong, though. */
+#ifdef __undef_ARG_MAX
+# undef ARG_MAX
+# undef __undef_ARG_MAX
+#endif
+
+#define MAXSYMLINKS 20
+
+/* 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
+ and NCARGS anyway. */
+#define NOFILE 256
+#define NCARGS 131072
diff --git a/sysdeps/unix/sysv/linux/sys/param.h b/sysdeps/unix/sysv/linux/sys/param.h
deleted file mode 100644
index c419b86408..0000000000
--- a/sysdeps/unix/sysv/linux/sys/param.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/* Copyright (C) 1995-1997,2000,2001,2003,2008,2011
- 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
-
-#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. */
-#ifdef __undef_ARG_MAX
-# undef ARG_MAX
-# undef __undef_ARG_MAX
-#endif
-
-/* BSD names for some <limits.h> values. */
-
-#define NBBY CHAR_BIT
-#ifndef NGROUPS
-# define NGROUPS NGROUPS_MAX
-#endif
-#define MAXSYMLINKS 20
-#define CANBSIZ MAX_CANON
-#define MAXPATHLEN PATH_MAX
-/* 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
- and NCARGS anyway. */
-#define NOFILE 256
-#define NCARGS 131072
-
-
-#include <sys/types.h>
-
-/* 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))
-
-
-/* Unit of `st_blocks'. */
-#define DEV_BSIZE 512
-
-
-#endif /* sys/param.h */