sysdeps/x86_64/dl-cache.h

   1 /* Support for reading /etc/ld.so.cache files written by Linux ldconfig.
   2    Copyright (C) 1999-2023 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 #define _DL_CACHE_DEFAULT_ID    0x303
  20
  21 #define _dl_cache_check_flags(flags)                    \
  22   ((flags) == _DL_CACHE_DEFAULT_ID)
  23
  24 #define add_system_dir(dir) \
  25   do                                                            \
  26     {                                                           \
  27       size_t len = strlen (dir);                                \
  28       char path[len + 4];                                       \
  29       memcpy (path, dir, len + 1);                              \
  30       if (len >= 6 && ! memcmp (path + len - 6, "/lib64", 6))   \
  31         {                                                       \
  32           len -= 2;                                             \
  33           path[len] = '\0';                                     \
  34         }                                                       \
  35       else if (len >= 7                                         \
  36                && ! memcmp (path + len - 7, "/libx32", 7))      \
  37         {                                                       \
  38           len -= 3;                                             \
  39           path[len] = '\0';                                     \
  40         }                                                       \
  41       add_dir (path);                                           \
  42       if (len >= 4 && ! memcmp (path + len - 4, "/lib", 4))     \
  43         {                                                       \
  44           memcpy (path + len, "64", 3);                         \
  45           add_dir (path);                                       \
  46           memcpy (path + len, "x32", 4);                                \
  47           add_dir (path);                                       \
  48         }                                                       \
  49     } while (0)
  50
  51 #include <sysdeps/generic/dl-cache.h>