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/* Emulation of getpagesize() for systems that need it.
Copyright (C) 1991 Free Software Foundation, Inc.
This file is part of the libiberty library.
Libiberty is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
Libiberty 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with libiberty; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/*
NAME
getpagesize -- return the number of bytes in page of memory
SYNOPSIS
int getpagesize (void)
DESCRIPTION
Returns the number of bytes in a page of memory. This is the
granularity of many of the system memory management routines.
No guarantee is made as to whether or not it is the same as the
basic memory management hardware page size.
BUGS
Is intended as a reasonable replacement for systems where this
is not provided as a system call. The value of 4096 may or may
not be correct for the systems where it is returned as the default
value.
*/
#include <sys/types.h>
#include <sys/param.h>
#ifdef HAVE_SYSCONF
#include <unistd.h>
#define GNU_OUR_PAGESIZE sysconf(_SC_PAGESIZE)
#else
#ifdef PAGESIZE
#define GNU_OUR_PAGESIZE PAGESIZE
#else /* no PAGESIZE */
#ifdef EXEC_PAGESIZE
#define GNU_OUR_PAGESIZE EXEC_PAGESIZE
#else /* no EXEC_PAGESIZE */
#ifdef NBPG
#define GNU_OUR_PAGESIZE (NBPG * CLSIZE)
#ifndef CLSIZE
#define CLSIZE 1
#endif /* CLSIZE */
#else /* no NBPG */
#ifdef NBPC
#define GNU_OUR_PAGESIZE NBPC
#else /* no NBPC */
#define GNU_OUR_PAGESIZE 4096 /* Just punt and use reasonable value */
#endif /* NBPC */
#endif /* NBPG */
#endif /* EXEC_PAGESIZE */
#endif /* PAGESIZE */
#endif /* HAVE_SYSCONF */
int
getpagesize ()
{
return (GNU_OUR_PAGESIZE);
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.