sysdeps/x86_64/x32/tst-size_t-memset.c

   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>