1 /* Verify that the clone child stack is properly aligned.
2 Copyright (C) 2021-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
26 #include <tst-stack-align.h>
27 #include <clone_internal.h>
28 #include <support/xunistd.h>
29 #include <support/check.h>
36 return TEST_STACK_ALIGN () ? 1 : 0;
44 if (TEST_STACK_ALIGN ())
45 FAIL_EXIT1 ("stack alignment failed");
48 # define STACK_SIZE 256 * 1024
50 # define STACK_SIZE 128 * 1024
52 char st
[STACK_SIZE
] __attribute__ ((aligned
));
53 struct clone_args clone_args
=
55 .stack
= (uintptr_t) st
,
56 .stack_size
= sizeof (st
),
58 pid_t p
= __clone_internal (&clone_args
, f
, 0);
59 TEST_VERIFY (p
!= -1);
62 xwaitpid (p
, &e
, __WCLONE
);
63 TEST_VERIFY (WIFEXITED (e
));
64 TEST_COMPARE (WEXITSTATUS (e
), 0);
68 #include <support/test-driver.c>