/* Obtain a backtrace and print it.

   Copyright (C) 1991-2018 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or

   modify it under the terms of the GNU General Public License

   as published by the Free Software Foundation; either version 2

   of the License, or (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, if not, see <http://www.gnu.org/licenses/>.

*/

#include <execinfo.h>

#include <stdio.h>

#include <stdlib.h>

/* Obtain a backtrace and print it to @code{stdout}. */

void

print_trace (void)

{

  void *array[10];

  size_t size;

  char **strings;

  size_t i;

  size = backtrace (array, 10);

  strings = backtrace_symbols (array, size);

  printf ("Obtained %zd stack frames.\n", size);

  for (i = 0; i < size; i++)

     printf ("%s\n", strings[i]);

  free (strings);

}

/* A dummy function to make the backtrace more interesting. */

void

dummy_function (void)

{

  print_trace ();

}

int

main (void)

{

  dummy_function ();

  return 0;

}