gdb/testsuite/gdb.base/pc-not-saved.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 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 volatile int global_var = 0;
  19
  20 void
  21 other_func (void)
  22 {
  23   /* Nothing.  */
  24 }
  25
  26 void
  27 break_bt_here (void)
  28 {
  29   /* This is all nonsense; just filler so this function has a body.  */
  30   if (global_var != 99)
  31     global_var++;
  32   if (global_var != 98)
  33     global_var++;
  34   if (global_var != 97)
  35     global_var++;
  36   if (global_var != 96)
  37     global_var++;
  38   other_func ();
  39   if (global_var != 95)
  40     global_var++;
  41 }
  42
  43 int
  44 main (void)
  45 {
  46   break_bt_here ();
  47   return 0;
  48 }