sysdeps/x86/tst-strcmp-rtm.c

   1 /* Test case for strcmp inside a transactionally executing RTM
   2    region.
   3    Copyright (C) 2022-2023 Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <https://www.gnu.org/licenses/>.  */
  19
  20 #include <stdint.h>
  21 #include <tst-string-rtm.h>
  22
  23 #ifdef WIDE
  24 # define CHAR wchar_t
  25 # define MEMSET wmemset
  26 # define STRCMP wcscmp
  27 # define TEST_NAME "wcscmp"
  28 #else /* !WIDE */
  29 # define CHAR char
  30 # define MEMSET memset
  31
  32 # ifndef STRCMP
  33 #  define STRCMP strcmp
  34 #  define TEST_NAME "strcmp"
  35 # endif
  36 #endif
  37
  38 #define LOOP 3000
  39 #define STRING_SIZE 1024
  40 CHAR string1[STRING_SIZE];
  41 CHAR string2[STRING_SIZE];
  42
  43 __attribute__ ((noinline, noclone))
  44 static int
  45 prepare (void)
  46 {
  47   MEMSET (string1, 'a', STRING_SIZE - 1);
  48   MEMSET (string2, 'a', STRING_SIZE - 1);
  49   if (STRCMP (string1, string2) == 0)
  50     return EXIT_SUCCESS;
  51   else
  52     return EXIT_FAILURE;
  53 }
  54
  55 __attribute__ ((noinline, noclone))
  56 static int
  57 function (void)
  58 {
  59   if (STRCMP (string1, string2) == 0)
  60     return 0;
  61   else
  62     return 1;
  63 }
  64
  65
  66 static int
  67 do_test (void)
  68 {
  69   return do_test_1 (TEST_NAME, LOOP, prepare, function);
  70 }