1/* Test memrchr with size_t in the lower 32 bits of 64-bit register.
2 Copyright (C) 2019-2024 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#define TEST_NAME "memrchr"
20#include "test-size_t.h"
21
22IMPL (memchr, 1)
23
24typedef void * (*proto_t) (const void *, int, size_t);
25
26static void *
27__attribute__ ((noinline, noclone))
28do_memrchr (parameter_t a, parameter_t b)
29{
30 return CALL (&b, a.p, (uintptr_t) b.p, a.len);
31}
32
33static int
34test_main (void)
35{
36 test_init ();
37
38 parameter_t src = { { page_size }, buf2 };
39 parameter_t c = { { 0 }, (void *) (uintptr_t) 0x12 };
40
41 int ret = 0;
42 FOR_EACH_IMPL (impl, 0)
43 {
44 c.fn = impl->fn;
45 void * res = do_memrchr (a: src, b: c);
46 if (res)
47 {
48 error (status: 0, errnum: 0, format: "Wrong result in function %s: %p != NULL",
49 impl->name, res);
50 ret = 1;
51 }
52 }
53
54 return ret ? EXIT_FAILURE : EXIT_SUCCESS;
55}
56
57#include <support/test-driver.c>
58

source code of glibc/sysdeps/x86_64/x32/tst-size_t-memrchr.c