glibc/elf/tst-alignmod2.c

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/* Copyright (C) 2003-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <stdbool.h>
#include <stdio.h>
#include <tst-stack-align.h>
#include <unistd.h>
static int res, *fdp;
static bool *test_destructorsp;
static void __attribute__((constructor))
con (void)
{
res = TEST_STACK_ALIGN () ? -1 : 1;
}
void
in_dso (int *result, bool *test_destructors, int *fd)
{
if (!res)
{
puts ("constructor has not been run");
*result = 1;
}
else if (res != 1)
{
puts ("constructor has been run without sufficient alignment");
*result = 1;
}
test_destructorsp = test_destructors;
fdp = fd;
}
static void __attribute__((destructor))
des (void)
{
if (!test_destructorsp || !*test_destructorsp)
return;
char c = TEST_STACK_ALIGN () ? 'D' : 'C';
write (*fdp, &c, 1);
}