smatch.c

   1 /*
   2  * sparse/smatch.c
   3  *
   4  * Copyright (C) 2006 Dan Carpenter.
   5  *
   6  * Licensed under the Open Software License version 1.1
   7  *
   8  */
   9
  10 #include <stdio.h>
  11 #include "smatch.h"
  12
  13 typedef void (*reg_func) (int id);
  14 void register_smatch_extra(int id);
  15 void register_smatch_ignore(int id);
  16 void register_implications(int id);
  17 void register_function_hooks(int id);
  18 void check_null_deref(int id);
  19 void check_overflow(int id);
  20 void check_locking(int id);
  21 void check_memory(int id);
  22 void check_frees_argument(int id);
  23 /* <- your test goes here */
  24 /* void register_template(int id); */
  25
  26 static const reg_func reg_funcs[] = {
  27         &register_smatch_extra, /* smatch_extra always has to be first */
  28         &register_smatch_ignore,
  29         &check_null_deref,
  30         &check_overflow,
  31         &check_locking,
  32         &check_memory,
  33         // &check_frees_argument,
  34
  35         /* <- your test goes here */
  36         /* &register_template, */
  37
  38         &register_implications, /* implications always has to be last */
  39         NULL
  40 };
  41
  42 static void help(void)
  43 {
  44         printf("Usage:  smatch [smatch arguments][sparse arguments] file.c\n");
  45         printf("--debug:  print lots of debug output.\n");
  46         printf("--debug-implied:  print debug output about implications.\n");
  47         printf("--assume-loops:  assume loops always go through at least once.\n");
  48         printf("--known-conditions:  don't branch for known conditions.");
  49         exit(1);
  50 }
  51
  52 int main(int argc, char **argv)
  53 {
  54         int i;
  55         reg_func func;
  56
  57         /* The script IDs start at 1.
  58            0 is used for internal stuff. */
  59         create_function_hash();
  60         for(i = 0; (func = reg_funcs[i]); i++){
  61                 func(i + 1);
  62         }
  63         register_function_hooks(-1);
  64
  65         while(argc >= 2) {
  66                 if (!strcmp(argv[1], "--debug")) {
  67                         debug_states = 1;
  68                 } else if (!strcmp(argv[1], "--debug-implied")) {
  69                         debug_implied_states = 1;
  70                 } else if (!strcmp(argv[1], "--no-implied")) {
  71                         option_no_implied = 1;
  72                 } else if (!strcmp(argv[1], "--assume-loops")) {
  73                         option_assume_loops = 1;
  74                 } else if (!strcmp(argv[1], "--known-conditions")) {
  75                         option_known_conditions = 1;
  76                 } else if (!strcmp(argv[1], "--help")) {
  77                         help();
  78                 } else {
  79                         break;
  80                 }
  81                 argc--;
  82                 argv++;
  83         }
  84
  85         smatch(argc, argv);
  86         return 0;
  87 }