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

   1 /* Test memchr with size_t in the lower 32 bits of 64-bit register.
   2    Copyright (C) 2019 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    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef WIDE
  20 # define TEST_NAME "memchr"
  21 #else
  22 # define TEST_NAME "wmemchr"
  23 #endif /* WIDE */
  24 #include "test-size_t.h"
  25
  26 #ifndef WIDE
  27 # define MEMCHR memchr
  28 # define CHAR char
  29 # define UCHAR unsigned char
  30 #else
  31 # include <wchar.h>
  32 # define MEMCHR wmemchr
  33 # define CHAR wchar_t
  34 # define UCHAR wchar_t
  35 #endif /* WIDE */
  36
  37 IMPL (MEMCHR, 1)
  38
  39 typedef CHAR * (*proto_t) (const CHAR*, int, size_t);
  40
  41 static CHAR *
  42 __attribute__ ((noinline, noclone))
  43 do_memchr (parameter_t a, parameter_t b)
  44 {
  45   return CALL (&b, a.p, (uintptr_t) b.p, a.len);
  46 }
  47
  48 static int
  49 test_main (void)
  50 {
  51   test_init ();
  52
  53   parameter_t src = { { page_size / sizeof (CHAR) }, buf2 };
  54   parameter_t c = { { 0 }, (void *) (uintptr_t) 0x12 };
  55
  56   int ret = 0;
  57   FOR_EACH_IMPL (impl, 0)
  58     {
  59       c.fn = impl->fn;
  60       CHAR *res = do_memchr (src, c);
  61       if (res)
  62         {
  63           error (0, 0, "Wrong result in function %s: %p != NULL",
  64                  impl->name, res);
  65           ret = 1;
  66         }
  67     }
  68
  69   return ret ? EXIT_FAILURE : EXIT_SUCCESS;
  70 }
  71
  72 #include <support/test-driver.c>