NetBSD/gnu/lib/libmalloc/valloc.c

45 lines
1.3 KiB
C

/* Allocate memory on a page boundary.
Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
This library 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.
This 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.
The author may be reached (Email) at the address mike@ai.mit.edu,
or (US mail) as Mike Haertel c/o Free Software Foundation. */
#ifndef _MALLOC_INTERNAL
#define _MALLOC_INTERNAL
#include <malloc.h>
#endif
#ifdef __GNU_LIBRARY__
extern size_t __getpagesize __P ((void));
#else
#include "getpagesize.h"
#define __getpagesize() getpagesize()
#endif
static size_t pagesize;
__ptr_t
valloc (size)
size_t size;
{
if (pagesize == 0)
pagesize = __getpagesize ();
return memalign (pagesize, size);
}