stdlib/tst-quick_exit.cc

   1 /* Bug 20198: Do not call object destructors at exit.
   2    Copyright (C) 2016-2022 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 <stdlib.h>
  20
  21 struct A
  22 {
  23   ~A () { abort (); }
  24 };
  25
  26 thread_local A a;
  27
  28 void
  29 __attribute__ ((noinline, noclone))
  30 optimization_barrier (A &)
  31 {
  32 }
  33
  34 static int
  35 do_test ()
  36 {
  37   optimization_barrier (a);
  38   /* The C++11 standard in 18.5.12 says:
  39      "Objects shall not be destroyed as a result of calling
  40       quick_exit."
  41      If quick_exit calls the destructors the test aborts.  */
  42   quick_exit (0);
  43   return 0;
  44 }
  45
  46 #define TEST_FUNCTION do_test ()
  47 #include "../test-skeleton.c"