1/* Support to debug branch prediction.
2   Copyright (C) 2007 Red Hat, Inc.
3   This file is part of elfutils.
4   Written by Ulrich Drepper <drepper@redhat.com>, 2007.
5
6   This file is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 3 of the License, or
9   (at your option) any later version.
10
11   elfutils is distributed in the hope that it will be useful, but
12   WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
18
19#include <stdio.h>
20
21#if DEBUGPRED
22extern const unsigned long int __start_predict_data;
23extern const unsigned long int __stop_predict_data;
24extern const unsigned long int __start_predict_line;
25extern const char *const __start_predict_file;
26
27static void
28__attribute__ ((destructor))
29predprint (void)
30{
31  const unsigned long int *s = &__start_predict_data;
32  const unsigned long int *e = &__stop_predict_data;
33  const unsigned long int *sl = &__start_predict_line;
34  const char *const *sf = &__start_predict_file;
35  while (s < e)
36    {
37      if (s[0] != 0 || s[1] != 0)
38	printf ("%s:%lu: wrong=%lu, correct=%lu%s\n", *sf, *sl, s[0], s[1],
39		s[0] > s[1] ? "   <==== WARNING" : "");
40      ++sl;
41      ++sf;
42      s += 2;
43    }
44}
45#endif
46