check_debug.c

   1 /*
   2  * sparse/check_debug.c
   3  *
   4  * Copyright (C) 2009 Dan Carpenter.
   5  *
   6  * Licensed under the Open Software License version 1.1
   7  *
   8  */
   9
  10 #include "smatch.h"
  11 #include "smatch_slist.h"  // blast this was supposed to be internal only stuff
  12
  13 static int my_id;
  14
  15 static void match_all_values(const char *fn, struct expression *expr, void *info)
  16 {
  17         struct state_list *slist;
  18
  19         slist = get_all_states(SMATCH_EXTRA);
  20         __print_slist(slist);
  21         free_slist(&slist);
  22 }
  23
  24 static void match_cur_slist(const char *fn, struct expression *expr, void *info)
  25 {
  26         __print_cur_slist();
  27 }
  28
  29 static void match_print_value(const char *fn, struct expression *expr, void *info)
  30 {
  31         struct state_list *slist;
  32         struct sm_state *tmp;
  33         struct expression *arg_expr;
  34
  35         arg_expr = get_argument_from_call_expr(expr->args, 0);
  36         if (arg_expr->type != EXPR_STRING) {
  37                 sm_msg("error:  the argument to %s is supposed to be a string literal", fn);
  38                 return;
  39         }
  40
  41         slist = get_all_states(SMATCH_EXTRA);
  42         FOR_EACH_PTR(slist, tmp) {
  43                 if (!strcmp(tmp->name, arg_expr->string->data))
  44                         sm_msg("%s = %s", tmp->name, tmp->state->name);
  45         } END_FOR_EACH_PTR(tmp);
  46         free_slist(&slist);
  47 }
  48
  49 static void match_note(const char *fn, struct expression *expr, void *info)
  50 {
  51         struct expression *arg_expr;
  52
  53         arg_expr = get_argument_from_call_expr(expr->args, 0);
  54         if (arg_expr->type != EXPR_STRING) {
  55                 sm_msg("error:  the argument to %s is supposed to be a string literal", fn);
  56                 return;
  57         }
  58         sm_msg("%s", arg_expr->string->data);
  59 }
  60
  61 static void match_debug_on(const char *fn, struct expression *expr, void *info)
  62 {
  63         option_debug = 1;
  64 }
  65
  66 static void match_debug_off(const char *fn, struct expression *expr, void *info)
  67 {
  68         option_debug = 0;
  69 }
  70 void check_debug(int id)
  71 {
  72         my_id = id;
  73         add_function_hook("__smatch_all_values", &match_all_values, NULL);
  74         add_function_hook("__smatch_value", &match_print_value, NULL);
  75         add_function_hook("__smatch_cur_slist", &match_cur_slist, NULL);
  76         add_function_hook("__smatch_note", &match_note, NULL);
  77         add_function_hook("__smatch_debug_on", &match_debug_on, NULL);
  78         add_function_hook("__smatch_debug_off", &match_debug_off, NULL);
  79 }