| 1 | /* Emulation of getpagesize() for systems that need it.
|
|---|
| 2 | Copyright (C) 1991-2003 Free Software Foundation, Inc.
|
|---|
| 3 |
|
|---|
| 4 | This program is free software; you can redistribute it and/or modify
|
|---|
| 5 | it under the terms of the GNU General Public License as published by
|
|---|
| 6 | the Free Software Foundation; either version 2 of the License, or
|
|---|
| 7 | (at your option) any later version.
|
|---|
| 8 |
|
|---|
| 9 | This program is distributed in the hope that it will be useful,
|
|---|
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|---|
| 12 | GNU General Public License for more details.
|
|---|
| 13 |
|
|---|
| 14 | You should have received a copy of the GNU General Public License
|
|---|
| 15 | along with this program; if not, write to the Free Software
|
|---|
| 16 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
|
|---|
| 17 |
|
|---|
| 18 | #if defined (HAVE_UNISTD_H)
|
|---|
| 19 | # ifdef _MINIX
|
|---|
| 20 | # include <sys/types.h>
|
|---|
| 21 | # endif
|
|---|
| 22 | # include <unistd.h>
|
|---|
| 23 | # if defined (_SC_PAGESIZE)
|
|---|
| 24 | # define getpagesize() sysconf(_SC_PAGESIZE)
|
|---|
| 25 | # else
|
|---|
| 26 | # if defined (_SC_PAGE_SIZE)
|
|---|
| 27 | # define getpagesize() sysconf(_SC_PAGE_SIZE)
|
|---|
| 28 | # endif /* _SC_PAGE_SIZE */
|
|---|
| 29 | # endif /* _SC_PAGESIZE */
|
|---|
| 30 | #endif
|
|---|
| 31 |
|
|---|
| 32 | #if !defined (getpagesize)
|
|---|
| 33 | # ifndef _MINIX
|
|---|
| 34 | # include <sys/param.h>
|
|---|
| 35 | # endif
|
|---|
| 36 | # if defined (PAGESIZE)
|
|---|
| 37 | # define getpagesize() PAGESIZE
|
|---|
| 38 | # else /* !PAGESIZE */
|
|---|
| 39 | # if defined (EXEC_PAGESIZE)
|
|---|
| 40 | # define getpagesize() EXEC_PAGESIZE
|
|---|
| 41 | # else /* !EXEC_PAGESIZE */
|
|---|
| 42 | # if defined (NBPG)
|
|---|
| 43 | # if !defined (CLSIZE)
|
|---|
| 44 | # define CLSIZE 1
|
|---|
| 45 | # endif /* !CLSIZE */
|
|---|
| 46 | # define getpagesize() (NBPG * CLSIZE)
|
|---|
| 47 | # else /* !NBPG */
|
|---|
| 48 | # if defined (NBPC)
|
|---|
| 49 | # define getpagesize() NBPC
|
|---|
| 50 | # endif /* NBPC */
|
|---|
| 51 | # endif /* !NBPG */
|
|---|
| 52 | # endif /* !EXEC_PAGESIZE */
|
|---|
| 53 | # endif /* !PAGESIZE */
|
|---|
| 54 | #endif /* !getpagesize */
|
|---|
| 55 |
|
|---|
| 56 | #if !defined (getpagesize)
|
|---|
| 57 | # define getpagesize() 4096 /* Just punt and use reasonable value */
|
|---|
| 58 | #endif
|
|---|
