elf/tst-dlopen-nodelete-reloc-mod6.cc

   1 /* First module for NODELETE test defining a unique symbol.
   2    Copyright (C) 2019-2023 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 #include "tst-dlopen-nodelete-reloc.h"
  20
  21 #include <stdbool.h>
  22 #include <stdio.h>
  23 #include <unistd.h>
  24
  25 /* Just a flag here, not used for NODELETE processing.  */
  26 bool may_finalize_mod6 = false;
  27
  28 /* Explicit instantiation.  This produces a unique symbol definition
  29    which is not referenced by the library itself, so the library is
  30    not marked NODELETE.  */
  31 template struct unique_symbol<6>;
  32
  33 static void __attribute__ ((destructor))
  34 fini (void)
  35 {
  36   if (!may_finalize_mod6)
  37     {
  38       puts ("error: tst-dlopen-nodelete-reloc-mod6.so destructor"
  39             " called too early");
  40       _exit (1);
  41     }
  42 }