gdb/testsuite/gdb.base/access-mem-running.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2021-2022 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 #include <unistd.h>
  19
  20 static unsigned int global_counter = 1;
  21
  22 static volatile unsigned int global_var = 123;
  23
  24 static void
  25 maybe_stop_here ()
  26 {
  27 }
  28
  29 int
  30 main (void)
  31 {
  32   global_counter = 1;
  33
  34   while (global_counter > 0)
  35     {
  36       global_counter++;
  37
  38       /* Less than 1s, so the counter increments at least once while
  39          the .exp sleep 1s, but slow enough that the counter doesn't
  40          wrap in 1s.  */
  41       usleep (5000);
  42
  43       maybe_stop_here ();
  44     }
  45
  46   return 0;
  47 }