1/* Support to debug branch prediction.
2   Copyright (C) 2007 Red Hat, Inc.
3   This file is part of Red Hat elfutils.
4   Written by Ulrich Drepper <drepper@redhat.com>, 2007.
5
6   Red Hat elfutils is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by the
8   Free Software Foundation; version 2 of the License.
9
10   Red Hat elfutils is distributed in the hope that it will be useful, but
11   WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   General Public License for more details.
14
15   You should have received a copy of the GNU General Public License along
16   with Red Hat elfutils; if not, write to the Free Software Foundation,
17   Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
18
19   Red Hat elfutils is an included package of the Open Invention Network.
20   An included package of the Open Invention Network is a package for which
21   Open Invention Network licensees cross-license their patents.  No patent
22   license is granted, either expressly or impliedly, by designation as an
23   included package.  Should you wish to participate in the Open Invention
24   Network licensing program, please visit www.openinventionnetwork.com
25   <http://www.openinventionnetwork.com>.  */
26
27#include <stdio.h>
28
29#if DEBUGPRED
30extern const unsigned long int __start_predict_data;
31extern const unsigned long int __stop_predict_data;
32extern const unsigned long int __start_predict_line;
33extern const char *const __start_predict_file;
34
35static void
36__attribute__ ((destructor))
37predprint (void)
38{
39  const unsigned long int *s = &__start_predict_data;
40  const unsigned long int *e = &__stop_predict_data;
41  const unsigned long int *sl = &__start_predict_line;
42  const char *const *sf = &__start_predict_file;
43  while (s < e)
44    {
45      if (s[0] != 0 || s[1] != 0)
46	printf ("%s:%lu: wrong=%lu, correct=%lu%s\n", *sf, *sl, s[0], s[1],
47		s[0] > s[1] ? "   <==== WARNING" : "");
48      ++sl;
49      ++sf;
50      s += 2;
51    }
52}
53#endif
54