sysdeps/unix/sysv/linux/aarch64/dl-cache.h

   1 /* Support for reading /etc/ld.so.cache files written by Linux ldconfig.
   2    Copyright (C) 2003-2024 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <ldconfig.h>
  20
  21 #ifdef __LP64__
  22 # define _DL_CACHE_DEFAULT_ID    (FLAG_AARCH64_LIB64 | FLAG_ELF_LIBC6)
  23 #else
  24 # define _DL_CACHE_DEFAULT_ID    (FLAG_AARCH64_LIB32 | FLAG_ELF_LIBC6)
  25 #endif
  26
  27 #define _dl_cache_check_flags(flags)                    \
  28   ((flags) == _DL_CACHE_DEFAULT_ID)
  29
  30 #define add_system_dir(dir) \
  31   do                                                            \
  32     {                                                           \
  33       size_t len = strlen (dir);                                \
  34       char path[len + 6];                                       \
  35       memcpy (path, dir, len + 1);                              \
  36       if (len >= 6 && ! memcmp (path + len - 6, "/lib64", 6))   \
  37         {                                                       \
  38           len -= 2;                                             \
  39           path[len] = '\0';                                     \
  40         }                                                       \
  41       if (len >= 9 && ! memcmp (path + len - 9, "/libilp32", 9))\
  42         {                                                       \
  43           len -= 5;                                             \
  44           path[len] = '\0';                                     \
  45         }                                                       \
  46       add_dir (path);                                           \
  47       if (len >= 4 && ! memcmp (path + len - 4, "/lib", 4))     \
  48         {                                                       \
  49           memcpy (path + len, "64", 3);                         \
  50           add_dir (path);                                       \
  51           memcpy (path + len, "ilp32", 6);                      \
  52           add_dir (path);                                       \
  53         }                                                       \
  54     } while (0)
  55
  56 #include_next <dl-cache.h>