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

   1 /* Support for reading /etc/ld.so.cache files written by Linux ldconfig.
   2    Copyright (C) 2003-2019 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 #if ((defined __mips_nan2008 && !defined HAVE_MIPS_NAN2008) \
  22      || (!defined __mips_nan2008 && defined HAVE_MIPS_NAN2008))
  23 # error "Configuration inconsistency: __mips_nan2008 != HAVE_MIPS_NAN2008, overridden CFLAGS?"
  24 #endif
  25
  26 /* Redefine the cache ID for new ABIs and 2008 NaN support; legacy o32
  27    keeps using the generic check.  */
  28 #ifdef __mips_nan2008
  29 # if _MIPS_SIM == _ABIO32
  30 #  define _DL_CACHE_DEFAULT_ID  (FLAG_MIPS_LIB32_NAN2008 | FLAG_ELF_LIBC6)
  31 # elif _MIPS_SIM == _ABI64
  32 #  define _DL_CACHE_DEFAULT_ID  (FLAG_MIPS64_LIBN64_NAN2008 | FLAG_ELF_LIBC6)
  33 # elif _MIPS_SIM == _ABIN32
  34 #  define _DL_CACHE_DEFAULT_ID  (FLAG_MIPS64_LIBN32_NAN2008 | FLAG_ELF_LIBC6)
  35 # endif
  36 #else
  37 # if _MIPS_SIM == _ABI64
  38 #  define _DL_CACHE_DEFAULT_ID  (FLAG_MIPS64_LIBN64 | FLAG_ELF_LIBC6)
  39 # elif _MIPS_SIM == _ABIN32
  40 #  define _DL_CACHE_DEFAULT_ID  (FLAG_MIPS64_LIBN32 | FLAG_ELF_LIBC6)
  41 # endif
  42 #endif
  43
  44 #ifdef _DL_CACHE_DEFAULT_ID
  45 # define _dl_cache_check_flags(flags) \
  46   ((flags) == _DL_CACHE_DEFAULT_ID)
  47 #endif
  48
  49 #define add_system_dir(dir) \
  50   do                                                            \
  51     {                                                           \
  52       size_t len = strlen (dir);                                \
  53       char path[len + 3];                                       \
  54       memcpy (path, dir, len + 1);                              \
  55       if (len >= 6                                              \
  56           && (! memcmp (path + len - 6, "/lib64", 6)            \
  57               || ! memcmp (path + len - 6, "/lib32", 6)))       \
  58         {                                                       \
  59           len -= 2;                                             \
  60           path[len] = '\0';                                     \
  61         }                                                       \
  62       add_dir (path);                                           \
  63       if (len >= 4 && ! memcmp (path + len - 4, "/lib", 4))     \
  64         {                                                       \
  65           memcpy (path + len, "32", 3);                         \
  66           add_dir (path);                                       \
  67           memcpy (path + len, "64", 3);                         \
  68           add_dir (path);                                       \
  69         }                                                       \
  70     } while (0)
  71
  72 #include_next <dl-cache.h>