1 /*
2 * Copyright (C) 2010 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 #include "smatch_slist.h"
20
21 static int my_id;
22
match_mod_timer(const char * fn,struct expression * expr,void * param)23 static void match_mod_timer(const char *fn, struct expression *expr, void *param)
24 {
25 struct expression *arg;
26 sval_t sval;
27
28 arg = get_argument_from_call_expr(expr->args, 1);
29 if (!get_value(arg, &sval) || sval.value == 0)
30 return;
31 sm_warning("mod_timer() takes an absolute time not an offset.");
32 }
33
check_mod_timer(int id)34 void check_mod_timer(int id)
35 {
36 if (option_project != PROJ_KERNEL)
37 return;
38
39 my_id = id;
40 add_function_hook("mod_timer", &match_mod_timer, NULL);
41 }
42