elf/tst-alignmod.c

   1 /* Copyright (C) 2003 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
   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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <stdio.h>
  21 #include <tst-stack-align.h>
  22
  23 static int res, *resp;
  24
  25 static void __attribute__((constructor))
  26 con (void)
  27 {
  28   res = TEST_STACK_ALIGN () ? -1 : 1;
  29 }
  30
  31 void
  32 in_dso (int *result)
  33 {
  34   if (!res)
  35     {
  36       puts ("constructor has not been run");
  37       *result = 1;
  38     }
  39   else if (res != 1)
  40     {
  41       puts ("constructor has been run without sufficient alignment");
  42       *result = 1;
  43     }
  44
  45   resp = result;
  46 }
  47
  48 static void __attribute__((destructor))
  49 des (void)
  50 {
  51   if (TEST_STACK_ALIGN ())
  52     *resp = 1;
  53 }