125b3c049e70834cf33790a28643ab058b507b35cBen Cheng/* Support to debug branch prediction. 225b3c049e70834cf33790a28643ab058b507b35cBen Cheng Copyright (C) 2007 Red Hat, Inc. 303333823c75a1c1887e923828113a1b0fd12020cElliott Hughes This file is part of elfutils. 425b3c049e70834cf33790a28643ab058b507b35cBen Cheng Written by Ulrich Drepper <drepper@redhat.com>, 2007. 525b3c049e70834cf33790a28643ab058b507b35cBen Cheng 603333823c75a1c1887e923828113a1b0fd12020cElliott Hughes This file is free software; you can redistribute it and/or modify 703333823c75a1c1887e923828113a1b0fd12020cElliott Hughes it under the terms of the GNU General Public License as published by 803333823c75a1c1887e923828113a1b0fd12020cElliott Hughes the Free Software Foundation; either version 3 of the License, or 903333823c75a1c1887e923828113a1b0fd12020cElliott Hughes (at your option) any later version. 1025b3c049e70834cf33790a28643ab058b507b35cBen Cheng 1103333823c75a1c1887e923828113a1b0fd12020cElliott Hughes elfutils is distributed in the hope that it will be useful, but 1225b3c049e70834cf33790a28643ab058b507b35cBen Cheng WITHOUT ANY WARRANTY; without even the implied warranty of 1303333823c75a1c1887e923828113a1b0fd12020cElliott Hughes MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1403333823c75a1c1887e923828113a1b0fd12020cElliott Hughes GNU General Public License for more details. 1525b3c049e70834cf33790a28643ab058b507b35cBen Cheng 1603333823c75a1c1887e923828113a1b0fd12020cElliott Hughes You should have received a copy of the GNU General Public License 1703333823c75a1c1887e923828113a1b0fd12020cElliott Hughes along with this program. If not, see <http://www.gnu.org/licenses/>. */ 1825b3c049e70834cf33790a28643ab058b507b35cBen Cheng 1925b3c049e70834cf33790a28643ab058b507b35cBen Cheng#include <stdio.h> 2025b3c049e70834cf33790a28643ab058b507b35cBen Cheng 2125b3c049e70834cf33790a28643ab058b507b35cBen Cheng#if DEBUGPRED 2225b3c049e70834cf33790a28643ab058b507b35cBen Chengextern const unsigned long int __start_predict_data; 2325b3c049e70834cf33790a28643ab058b507b35cBen Chengextern const unsigned long int __stop_predict_data; 2425b3c049e70834cf33790a28643ab058b507b35cBen Chengextern const unsigned long int __start_predict_line; 2525b3c049e70834cf33790a28643ab058b507b35cBen Chengextern const char *const __start_predict_file; 2625b3c049e70834cf33790a28643ab058b507b35cBen Cheng 2725b3c049e70834cf33790a28643ab058b507b35cBen Chengstatic void 2825b3c049e70834cf33790a28643ab058b507b35cBen Cheng__attribute__ ((destructor)) 2925b3c049e70834cf33790a28643ab058b507b35cBen Chengpredprint (void) 3025b3c049e70834cf33790a28643ab058b507b35cBen Cheng{ 3125b3c049e70834cf33790a28643ab058b507b35cBen Cheng const unsigned long int *s = &__start_predict_data; 3225b3c049e70834cf33790a28643ab058b507b35cBen Cheng const unsigned long int *e = &__stop_predict_data; 3325b3c049e70834cf33790a28643ab058b507b35cBen Cheng const unsigned long int *sl = &__start_predict_line; 3425b3c049e70834cf33790a28643ab058b507b35cBen Cheng const char *const *sf = &__start_predict_file; 3525b3c049e70834cf33790a28643ab058b507b35cBen Cheng while (s < e) 3625b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 3725b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (s[0] != 0 || s[1] != 0) 3825b3c049e70834cf33790a28643ab058b507b35cBen Cheng printf ("%s:%lu: wrong=%lu, correct=%lu%s\n", *sf, *sl, s[0], s[1], 3925b3c049e70834cf33790a28643ab058b507b35cBen Cheng s[0] > s[1] ? " <==== WARNING" : ""); 4025b3c049e70834cf33790a28643ab058b507b35cBen Cheng ++sl; 4125b3c049e70834cf33790a28643ab058b507b35cBen Cheng ++sf; 4225b3c049e70834cf33790a28643ab058b507b35cBen Cheng s += 2; 4325b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 4425b3c049e70834cf33790a28643ab058b507b35cBen Cheng} 4525b3c049e70834cf33790a28643ab058b507b35cBen Cheng#endif 46