darling-gdb/mmalloc/mvalloc.c

40 lines
1.2 KiB
C

/* Allocate memory on a page boundary.
Copyright (C) 1991 Free Software Foundation, Inc.
The GNU C 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.
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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include "mmalloc.h"
/* Cache the pagesize for the current host machine. Note that if the host
does not readily provide a getpagesize() function, we need to emulate it
elsewhere, not clutter up this file with lots of kluges to try to figure
it out. */
static size_t pagesize;
PTR
mvalloc (md, size)
PTR md;
size_t size;
{
if (pagesize == 0)
{
pagesize = getpagesize ();
}
return (mmemalign (md, pagesize, size));
}