smatch_project.c

   1 /*
   2  * sparse/smatch_project.c
   3  *
   4  * Copyright (C) 2010 Dan Carpenter.
   5  *
   6  * Licensed under the Open Software License version 1.1
   7  *
   8  */
   9
  10 /*
  11  * This file is only for very generic stuff, that is reusable
  12  * between projects.  If you need something special create a
  13  * check_your_project.c.
  14  *
  15  */
  16
  17 #include "smatch.h"
  18 #include "smatch_extra.h"
  19
  20 static void register_no_return_funcs(void)
  21 {
  22         struct token *token;
  23         const char *func;
  24         static char name[256];
  25
  26
  27         snprintf(name, 256, "%s.no_return_funcs", option_project_str);
  28         name[255] = '\0';
  29         token = get_tokens_file(name);
  30         if (!token)
  31                 return;
  32         if (token_type(token) != TOKEN_STREAMBEGIN)
  33                 return;
  34         token = token->next;
  35         while (token_type(token) != TOKEN_STREAMEND) {
  36                 if (token_type(token) != TOKEN_IDENT)
  37                         return;
  38                 func = show_ident(token->ident);
  39                 add_function_hook(func, &__match_nullify_path_hook, NULL);
  40                 token = token->next;
  41         }
  42         clear_token_alloc();
  43 }
  44
  45 static void register_ignored_macros(void)
  46 {
  47         struct token *token;
  48         char *macro;
  49         static char name[256];
  50
  51         snprintf(name, 256, "%s.ignored_macros", option_project_str);
  52         name[255] = '\0';
  53         token = get_tokens_file(name);
  54         if (!token)
  55                 return;
  56         if (token_type(token) != TOKEN_STREAMBEGIN)
  57                 return;
  58         token = token->next;
  59         while (token_type(token) != TOKEN_STREAMEND) {
  60                 if (token_type(token) != TOKEN_IDENT)
  61                         return;
  62                 macro = alloc_string(show_ident(token->ident));
  63                 add_ptr_list(&__ignored_macros, macro);
  64                 token = token->next;
  65         }
  66         clear_token_alloc();
  67 }
  68
  69 void register_project(int id)
  70 {
  71         if (option_project != PROJ_KERNEL)
  72                 add_function_hook("exit", &__match_nullify_path_hook, NULL);
  73         register_no_return_funcs();
  74         register_ignored_macros();
  75 }