Blame elf/tst-alignmod2.c

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/* Copyright (C) 2003-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.  */
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#include <stdbool.h>
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#include <stdio.h>
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#include <tst-stack-align.h>
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#include <unistd.h>
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static int res, *fdp;
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static bool *test_destructorsp;
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static void __attribute__((constructor))
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con (void)
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{
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  res = TEST_STACK_ALIGN () ? -1 : 1;
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}
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void
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in_dso (int *result, bool *test_destructors, int *fd)
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{
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  if (!res)
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    {
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      puts ("constructor has not been run");
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      *result = 1;
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    }
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  else if (res != 1)
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    {
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      puts ("constructor has been run without sufficient alignment");
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      *result = 1;
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    }
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  test_destructorsp = test_destructors;
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  fdp = fd;
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}
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static void __attribute__((destructor))
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des (void)
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{
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  if (!test_destructorsp || !*test_destructorsp)
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    return;
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  char c = TEST_STACK_ALIGN () ? 'D' : 'C';
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  write (*fdp, &c, 1);
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}