sysdeps/x86_64/tst-x86-64-tls-1.c

   1 /* Test THREAD_SETMEM and THREAD_SETMEM_NC for IMM64.
   2    Copyright (C) 2021-2023 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 #include <tls.h>
  20 #include <support/check.h>
  21
  22 static int
  23 do_test (void)
  24 {
  25   unsigned long long int saved_ssp_base, ssp_base;
  26   saved_ssp_base = THREAD_GETMEM (THREAD_SELF, header.ssp_base);
  27
  28   THREAD_SETMEM (THREAD_SELF, header.ssp_base, (1ULL << 57) - 1);
  29   ssp_base = THREAD_GETMEM (THREAD_SELF, header.ssp_base);
  30   if (ssp_base != ((1ULL << 57) - 1))
  31     FAIL_EXIT1 ("THREAD_SETMEM: 0x%llx != 0x%llx",
  32                 ssp_base, (1ULL << 57) - 1);
  33
  34   THREAD_SETMEM (THREAD_SELF, header.ssp_base, -1ULL);
  35   ssp_base = THREAD_GETMEM (THREAD_SELF, header.ssp_base);
  36   if (ssp_base != -1ULL)
  37     FAIL_EXIT1 ("THREAD_SETMEM: 0x%llx != 0x%llx", ssp_base, -1ULL);
  38
  39   THREAD_SETMEM (THREAD_SELF, header.ssp_base, saved_ssp_base);
  40 #ifndef __ILP32__
  41   struct pthread_key_data *saved_specific, *specific;
  42   saved_specific = THREAD_GETMEM_NC (THREAD_SELF, specific, 1);
  43
  44   uintptr_t value = (1UL << 57) - 1;
  45   THREAD_SETMEM_NC (THREAD_SELF, specific, 1,
  46                     (struct pthread_key_data *) value);
  47   specific = THREAD_GETMEM_NC (THREAD_SELF, specific, 1);
  48   if (specific != (struct pthread_key_data *) value)
  49     FAIL_EXIT1 ("THREAD_GETMEM_NC: %p != %p",
  50                 specific, (struct pthread_key_data *) value);
  51
  52   THREAD_SETMEM_NC (THREAD_SELF, specific, 1,
  53                     (struct pthread_key_data *) -1UL);
  54   specific = THREAD_GETMEM_NC (THREAD_SELF, specific, 1);
  55   if (specific != (struct pthread_key_data *) -1UL)
  56     FAIL_EXIT1 ("THREAD_GETMEM_NC: %p != %p",
  57                 specific, (struct pthread_key_data *) -1UL);
  58
  59   THREAD_SETMEM_NC (THREAD_SELF, specific, 1, saved_specific);
  60 #endif
  61   return 0;
  62 }
  63
  64 #include <support/test-driver.c>