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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2013 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <config-util.h>
#include <grub/dl.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <sys/mman.h>
#include <stdlib.h>
#include <string.h>
void *
grub_osdep_dl_memalign (grub_size_t align, grub_size_t size)
{
void *ret;
if (align < 8192 * 16)
align = 8192 * 16;
size = ALIGN_UP (size, 8192 * 16);
#if defined(HAVE_POSIX_MEMALIGN)
if (posix_memalign (&ret, align, size) != 0)
ret = 0;
#elif defined(HAVE_MEMALIGN)
ret = memalign (align, size);
#else
#error "Complete this"
#endif
if (!ret)
{
grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"));
return NULL;
}
mprotect (ret, size, PROT_READ | PROT_WRITE | PROT_EXEC);
return ret;
}
void
grub_dl_osdep_dl_free (void *ptr)
{
if (ptr)
free (ptr);
}
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