src/backtrace.c

   1 /*
   2  * (C) 2008 by Daniel Willmann <daniel@totalueberwachung.de>
   3  * (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
   4  * (C) 2009-2010 by Harald Welte <laforge@gnumonks.org>
   5  * (C) 2010 by Nico Golde <nico@ngolde.de>
   6  *
   7  * All Rights Reserved
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  22  *
  23  */
  24
  25 /*! \file backtrace.c
  26  *  \brief Routines realted to generating call back traces
  27  */
  28
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <osmocom/core/utils.h>
  32 #include "config.h"
  33
  34 #ifdef HAVE_EXECINFO_H
  35 #include <execinfo.h>
  36
  37 /*! \brief Generate and print a call back-trace
  38  *
  39  * This function will generate a function call back-trace of the
  40  * current process and print it to stdout
  41  */
  42 void osmo_generate_backtrace(void)
  43 {
  44         int i, nptrs;
  45         void *buffer[100];
  46         char **strings;
  47
  48         nptrs = backtrace(buffer, ARRAY_SIZE(buffer));
  49         printf("backtrace() returned %d addresses\n", nptrs);
  50
  51         strings = backtrace_symbols(buffer, nptrs);
  52         if (!strings)
  53                 return;
  54
  55         for (i = 1; i < nptrs; i++)
  56                 printf("%s\n", strings[i]);
  57
  58         free(strings);
  59 }
  60 #else
  61 void osmo_generate_backtrace(void)
  62 {
  63 }
  64 #endif