elf/tst-tls-ie-mod.h

   1 /* Module with specified TLS size and model.
   2    Copyright (C) 2020-2023 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 /* This file is parameterized by macros N, SIZE and MODEL.  */
  20
  21 #include <stdio.h>
  22 #include <string.h>
  23
  24 #define CONCATX(x, y) x ## y
  25 #define CONCAT(x, y) CONCATX (x, y)
  26 #define STRX(x) #x
  27 #define STR(x) STRX (x)
  28
  29 #define VAR CONCAT (var, N)
  30
  31 __attribute__ ((aligned (8), tls_model (MODEL)))
  32 __thread char VAR[SIZE];
  33
  34 void
  35 CONCAT (access, N) (void)
  36 {
  37   printf (STR (VAR) "[%d]:\t %p .. %p " MODEL "\n", SIZE, VAR, VAR + SIZE);
  38   fflush (stdout);
  39   memset (VAR, 1, SIZE);
  40 }