glibc/sysdeps/unix/sysv/linux/x86_64/dl-cache.h

/* Support for reading /etc/ld.so.cache files written by Linux ldconfig.
   Copyright (C) 1999-2016 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#define _DL_CACHE_DEFAULT_ID	0x303

#define _dl_cache_check_flags(flags)			\
  ((flags) == _DL_CACHE_DEFAULT_ID)

#define add_system_dir(dir) \
  do								\
    {								\
      size_t len = strlen (dir);				\
      char path[len + 4];					\
      memcpy (path, dir, len + 1);				\
      if (len >= 6 && ! memcmp (path + len - 6, "/lib64", 6))	\
	{							\
	  len -= 2;						\
	  path[len] = '\0';					\
	}							\
      else if (len >= 7						\
	       && ! memcmp (path + len - 7, "/libx32", 7))	\
	{							\
	  len -= 3;						\
	  path[len] = '\0';					\
	}							\
      add_dir (path);						\
      if (len >= 4 && ! memcmp (path + len - 4, "/lib", 4))	\
	{							\
	  memcpy (path + len, "64", 3);				\
	  add_dir (path);					\
	  memcpy (path + len, "x32", 4);				\
	  add_dir (path);					\
	}							\
    } while (0)

#include <sysdeps/generic/dl-cache.h>