1/* Test case for strcpy inside a transactionally executing RTM region.
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 <tst-string-rtm.h>
20
21#define LOOP 3000
22#define STRING_SIZE 1024
23char string1[STRING_SIZE];
24char string2[STRING_SIZE];
25
26__attribute__ ((noinline, noclone))
27static int
28prepare (void)
29{
30 memset (string1, 'a', STRING_SIZE - 1);
31 if (strcpy (string2, string1) == string2
32 && strcmp (string2, string1) == 0)
33 return EXIT_SUCCESS;
34 else
35 return EXIT_FAILURE;
36}
37
38__attribute__ ((noinline, noclone))
39static int
40function (void)
41{
42 if (strcpy (string2, string1) == string2
43 && strcmp (string2, string1) == 0)
44 return 0;
45 else
46 return 1;
47}
48
49static int
50do_test (void)
51{
52 return do_test_1 (name: "strcpy", LOOP, prepare, function);
53}
54

source code of glibc/sysdeps/x86/tst-strcpy-rtm.c