dlfcn/libdl-compat.c

   1 /* Placeholder compatibility symbols.
   2    Copyright (C) 2005-2022 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 <dlfcn.h>
  20 #include <shlib-compat.h>
  21
  22 /* This file is used to keep specific symbol versions occupied, so
  23    that ld does not generate weak symbol version definitions.  */
  24
  25 void
  26 attribute_compat_text_section
  27 __attribute_used__
  28 __libdl_version_placeholder_1 (void)
  29 {
  30 }
  31
  32 #if SHLIB_COMPAT (libdl, GLIBC_2_0, GLIBC_2_34)
  33 compat_symbol (libdl, __libdl_version_placeholder_1,
  34                __libdl_version_placeholder, GLIBC_2_0);
  35 #endif
  36
  37 #if SHLIB_COMPAT (libdl, GLIBC_2_1, GLIBC_2_34)
  38 compat_symbol (libdl, __libdl_version_placeholder_1,
  39                __libdl_version_placeholder, GLIBC_2_1);
  40 #endif
  41
  42 #if SHLIB_COMPAT (libdl, GLIBC_2_3_3, GLIBC_2_34)
  43 compat_symbol (libdl, __libdl_version_placeholder_1,
  44                __libdl_version_placeholder, GLIBC_2_3_3);
  45 #endif
  46
  47 #if SHLIB_COMPAT (libdl, GLIBC_2_3_4, GLIBC_2_34)
  48 compat_symbol (libdl, __libdl_version_placeholder_1,
  49                __libdl_version_placeholder, GLIBC_2_3_4);
  50 #endif