check_call_tree.c

   1 /*
   2  * Copyright (C) 2009 Dan Carpenter.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, see http://www.gnu.org/copyleft/gpl.txt
  16  */
  17
  18 #include "smatch.h"
  19
  20 static int my_id;
  21
  22 static void match_call(struct expression *expr)
  23 {
  24         char *fn_name;
  25
  26         fn_name = expr_to_var(expr->fn);
  27         if (!fn_name)
  28                 return;
  29         sm_prefix();
  30         sm_printf("info: func_call (");
  31         print_held_locks();
  32         sm_printf(") %s\n", fn_name);
  33         free_string(fn_name);
  34 }
  35
  36 void check_call_tree(int id)
  37 {
  38         if (!option_call_tree)
  39                 return;
  40         my_id = id;
  41         add_hook(&match_call, FUNCTION_CALL_HOOK);
  42 }