1  /* Test memset with size_t in the lower 32 bits of 64-bit register.
       2     Copyright (C) 2019-2023 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 "wmemset"
      21  #else
      22  # define TEST_NAME "memset"
      23  #endif /* WIDE */
      24  
      25  #include "test-size_t.h"
      26  
      27  #ifdef WIDE
      28  # include <wchar.h>
      29  # define MEMSET wmemset
      30  # define CHAR wchar_t
      31  #else
      32  # define MEMSET memset
      33  # define CHAR char
      34  #endif /* WIDE */
      35  
      36  IMPL (MEMSET, 1)
      37  
      38  typedef CHAR *(*proto_t) (CHAR *, int, size_t);
      39  
      40  static void *
      41  __attribute__ ((noinline, noclone))
      42  do_memset (parameter_t a, parameter_t b)
      43  {
      44    return CALL (&b, a.p, (uintptr_t) b.p, a.len);
      45  }
      46  
      47  static int
      48  test_main (void)
      49  {
      50    test_init ();
      51  
      52    CHAR ch = 0x23;
      53    parameter_t src = { { page_size / sizeof (CHAR) }, buf2 };
      54    parameter_t c = { { 0 }, (void *) (uintptr_t) ch };
      55  
      56    int ret = 0;
      57    FOR_EACH_IMPL (impl, 0)
      58      {
      59        c.fn = impl->fn;
      60        CHAR *p = (CHAR *) do_memset (src, c);
      61        size_t i;
      62        for (i = 0; i < src.len; i++)
      63  	if (p[i] != ch)
      64  	  {
      65  	    error (0, 0, "Wrong result in function %s", impl->name);
      66  	    ret = 1;
      67  	  }
      68      }
      69  
      70    return ret ? EXIT_FAILURE : EXIT_SUCCESS;
      71  }
      72  
      73  #include <support/test-driver.c>