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. |
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, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <sched.h> |
20 | #include <stdbool.h> |
21 | #include <stdint.h> |
22 | #include <stdio.h> |
23 | #include <string.h> |
24 | #include <sys/wait.h> |
25 | #include <unistd.h> |
26 | #include <tst-stack-align.h> |
27 | #include <clone_internal.h> |
28 | #include <support/xunistd.h> |
29 | #include <support/check.h> |
30 | |
31 | static int |
32 | f (void *arg) |
33 | { |
34 | puts (s: "in f" ); |
35 | |
36 | return TEST_STACK_ALIGN () ? 1 : 0; |
37 | } |
38 | |
39 | static int |
40 | do_test (void) |
41 | { |
42 | puts (s: "in main" ); |
43 | |
44 | if (TEST_STACK_ALIGN ()) |
45 | FAIL_EXIT1 ("stack alignment failed" ); |
46 | |
47 | #define STACK_SIZE 128 * 1024 |
48 | char st[STACK_SIZE] __attribute__ ((aligned)); |
49 | struct clone_args clone_args = |
50 | { |
51 | .stack = (uintptr_t) st, |
52 | .stack_size = sizeof (st), |
53 | }; |
54 | pid_t p = __clone_internal (&clone_args, f, 0); |
55 | TEST_VERIFY (p != -1); |
56 | |
57 | int e; |
58 | xwaitpid (p, status: &e, __WCLONE); |
59 | TEST_VERIFY (WIFEXITED (e)); |
60 | TEST_COMPARE (WEXITSTATUS (e), 0); |
61 | return 0; |
62 | } |
63 | |
64 | #include <support/test-driver.c> |
65 | |