| /* |
| * 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); |
| } |