1 /* Copyright (C) 2003-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <stdbool.h>
19 #include <stdio.h>
20 #include <tst-stack-align.h>
21 #include <unistd.h>
22
23 static int res, *fdp;
24 static bool *test_destructorsp;
25
26 static void __attribute__((constructor))
con(void)27 con (void)
28 {
29 res = TEST_STACK_ALIGN () ? -1 : 1;
30 }
31
32 void
in_dso(int * result,bool * test_destructors,int * fd)33 in_dso (int *result, bool *test_destructors, int *fd)
34 {
35 if (!res)
36 {
37 puts ("constructor has not been run");
38 *result = 1;
39 }
40 else if (res != 1)
41 {
42 puts ("constructor has been run without sufficient alignment");
43 *result = 1;
44 }
45
46 test_destructorsp = test_destructors;
47 fdp = fd;
48 }
49
50 static void __attribute__((destructor))
des(void)51 des (void)
52 {
53 if (!test_destructorsp || !*test_destructorsp)
54 return;
55
56 char c = TEST_STACK_ALIGN () ? 'D' : 'C';
57 write (*fdp, &c, 1);
58 }
59