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      1  1.11       abs /*	$NetBSD: valloc.c,v 1.11 2012/06/25 22:32:44 abs Exp $	*/
      2   1.5       cgd 
      3   1.1       cgd /*
      4   1.5       cgd  * Copyright (c) 1980, 1993
      5   1.5       cgd  *	The Regents of the University of California.  All rights reserved.
      6   1.1       cgd  *
      7   1.1       cgd  * Redistribution and use in source and binary forms, with or without
      8   1.1       cgd  * modification, are permitted provided that the following conditions
      9   1.1       cgd  * are met:
     10   1.1       cgd  * 1. Redistributions of source code must retain the above copyright
     11   1.1       cgd  *    notice, this list of conditions and the following disclaimer.
     12   1.1       cgd  * 2. Redistributions in binary form must reproduce the above copyright
     13   1.1       cgd  *    notice, this list of conditions and the following disclaimer in the
     14   1.1       cgd  *    documentation and/or other materials provided with the distribution.
     15  1.10       agc  * 3. Neither the name of the University nor the names of its contributors
     16   1.1       cgd  *    may be used to endorse or promote products derived from this software
     17   1.1       cgd  *    without specific prior written permission.
     18   1.1       cgd  *
     19   1.1       cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20   1.1       cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21   1.1       cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22   1.1       cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23   1.1       cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24   1.1       cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25   1.1       cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26   1.1       cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27   1.1       cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28   1.1       cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29   1.1       cgd  * SUCH DAMAGE.
     30   1.1       cgd  */
     31   1.1       cgd 
     32   1.6  christos #include <sys/cdefs.h>
     33   1.1       cgd #if defined(LIBC_SCCS) && !defined(lint)
     34   1.5       cgd #if 0
     35   1.5       cgd static char sccsid[] = "@(#)valloc.c	8.1 (Berkeley) 6/4/93";
     36   1.5       cgd #else
     37  1.11       abs __RCSID("$NetBSD: valloc.c,v 1.11 2012/06/25 22:32:44 abs Exp $");
     38   1.5       cgd #endif
     39   1.1       cgd #endif /* LIBC_SCCS and not lint */
     40   1.1       cgd 
     41   1.7       jtc #include "namespace.h"
     42   1.1       cgd #include <stdlib.h>
     43   1.1       cgd #include <unistd.h>
     44   1.7       jtc 
     45   1.7       jtc #ifdef __weak_alias
     46   1.9   mycroft __weak_alias(valloc,_valloc)
     47   1.7       jtc #endif
     48   1.1       cgd 
     49   1.1       cgd void *
     50  1.11       abs valloc(size_t i)
     51   1.1       cgd {
     52   1.4       cgd 	long valsiz = getpagesize(), j;
     53   1.8     perry 	void *cp = malloc((size_t)(i + (valsiz-1)));
     54   1.1       cgd 
     55   1.4       cgd 	j = ((long)cp + (valsiz-1)) &~ (valsiz-1);
     56   1.1       cgd 	return ((void *)j);
     57   1.1       cgd }
     58