gdb/testsuite/gdb.arch/arm-single-step-kernel-helper.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2016-2024 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program 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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 static int *kernel_user_helper_version_ptr = (int *) 0xffff0ffc;
  19 static int kernel_user_helper_version;
  20
  21 typedef void * (kernel_user_func_t)(void);
  22 #define kernel_user_get_tls (*(kernel_user_func_t *) 0xffff0fe0)
  23
  24 int
  25 main (void)
  26 {
  27   int i;
  28
  29   kernel_user_helper_version = *kernel_user_helper_version_ptr;
  30
  31   for (i = 0; i < 8; i++)
  32     kernel_user_get_tls ();
  33 }