62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2013 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <config-util.h>
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#include <grub/dl.h>
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#include <grub/misc.h>
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#include <grub/mm.h>
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#include <sys/mman.h>
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#include <stdlib.h>
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#include <string.h>
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void *
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grub_osdep_dl_memalign (grub_size_t align, grub_size_t size)
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{
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void *ret;
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if (align < 8192 * 16)
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align = 8192 * 16;
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size = ALIGN_UP (size, 8192 * 16);
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#if defined(HAVE_POSIX_MEMALIGN)
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if (posix_memalign (&ret, align, size) != 0)
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ret = 0;
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#elif defined(HAVE_MEMALIGN)
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ret = memalign (align, size);
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#else
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#error "Complete this"
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#endif
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if (!ret)
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{
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grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"));
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return NULL;
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}
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mprotect (ret, size, PROT_READ | PROT_WRITE | PROT_EXEC);
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return ret;
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}
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void
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grub_dl_osdep_dl_free (void *ptr)
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{
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if (ptr)
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free (ptr);
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}
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