gdb/testsuite/gdb.base/memops-watchpoint.c

   1 /* This test program 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 #include <stdio.h>
  19 #include <string.h>
  20
  21 int
  22 main (void)
  23 {
  24   /* Some targets need 4-byte alignment for hardware watchpoints.  */
  25   char s[40] __attribute__ ((aligned (4)))
  26     = "This is a relatively long string...";
  27   char a[40] __attribute__ ((aligned (4)))
  28     = "String to be overwritten with zeroes";
  29   char b[40] __attribute__ ((aligned (4)))
  30     = "Another string to be memcopied...";
  31   char c[40] __attribute__ ((aligned (4)))
  32     = "Another string to be memmoved...";
  33
  34   /* Break here.  */
  35   memset (a, 0, sizeof (a));
  36
  37   memcpy (b, s, sizeof (b));
  38
  39   memmove (c, s, sizeof (c));
  40
  41   printf ("b = '%s'\n", b);
  42   printf ("c = '%s'\n", c);
  43
  44   return 0;
  45 }