1 /* Test strnlen with size_t in the lower 32 bits of 64-bit register.
2 Copyright (C) 2019-2022 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 #ifdef WIDE
20 # define TEST_NAME "wcsnlen"
21 #else
22 # define TEST_NAME "strnlen"
23 #endif /* WIDE */
24
25 #include "test-size_t.h"
26
27 #ifdef WIDE
28 # include <wchar.h>
29 # define STRNLEN wcsnlen
30 # define CHAR wchar_t
31 #else
32 # define STRNLEN strnlen
33 # define CHAR char
34 #endif /* WIDE */
35
36 IMPL (STRNLEN, 1)
37
38 typedef size_t (*proto_t) (const CHAR *, size_t);
39
40 static size_t
41 __attribute__ ((noinline, noclone))
do_strnlen(parameter_t a,parameter_t b)42 do_strnlen (parameter_t a, parameter_t b)
43 {
44 return CALL (&a, a.p, b.len);
45 }
46
47 static int
test_main(void)48 test_main (void)
49 {
50 test_init ();
51
52 size_t size = page_size / sizeof (CHAR);
53 parameter_t src = { { 0 }, buf2 };
54 parameter_t c = { { size }, (void *) (uintptr_t) 'a' };
55
56 int ret = 0;
57 FOR_EACH_IMPL (impl, 0)
58 {
59 src.fn = impl->fn;
60 size_t res = do_strnlen (src, c);
61 if (res != size)
62 {
63 error (0, 0, "Wrong result in function %s: 0x%x != 0x%x",
64 impl->name, res, size);
65 ret = 1;
66 }
67 }
68
69 return ret ? EXIT_FAILURE : EXIT_SUCCESS;
70 }
71
72 #include <support/test-driver.c>
73