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>