gdb/testsuite/gdb.base/dprintf.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright (C) 2012-2015 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
  20 #include "../lib/unbuffer_output.c"
  21
  22 static int g;
  23
  24 void
  25 foo (int arg)
  26 {
  27   g += arg;
  28   g *= 2; /* set dprintf 1 here */
  29   g /= 2.5; /* set breakpoint 1 here */
  30 }
  31
  32 int
  33 main (int argc, char *argv[])
  34 {
  35   int loc = 1234;
  36
  37   gdb_unbuffer_output ();
  38
  39   /* Ensure these functions are available.  */
  40   printf ("kickoff %d\n", loc);
  41   fprintf (stderr, "also to stderr %d\n", loc);
  42
  43   foo (loc++);
  44   foo (loc++);
  45   foo (loc++);
  46   return g;
  47 }
  48
  49 #include <stdlib.h>
  50 /* Make sure function 'malloc' is linked into program.  One some bare-metal
  51    port, if we don't use 'malloc', it will not be linked in program.  'malloc'
  52    is needed, otherwise we'll see such error message
  53
  54    evaluation of this expression requires the program to have a function
  55    "malloc".  */
  56 void
  57 bar (void)
  58 {
  59   void *p = malloc (16);
  60
  61   free (p);
  62 }