test-linearize.c

   1 /*
   2  * Parse and linearize the tree for testing.
   3  *
   4  * Copyright (C) 2003 Transmeta Corp.
   5  *               2003-2004 Linus Torvalds
   6  *
   7  * Licensed under the Open Software License version 1.1
   8  */
   9 #include <stdarg.h>
  10 #include <stdlib.h>
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include <ctype.h>
  14 #include <unistd.h>
  15 #include <fcntl.h>
  16
  17 #include "lib.h"
  18 #include "token.h"
  19 #include "parse.h"
  20 #include "symbol.h"
  21 #include "expression.h"
  22 #include "linearize.h"
  23
  24 static void clean_up_symbol(struct symbol *sym, void *_parent, int flags)
  25 {
  26         struct entrypoint *ep;
  27
  28         check_duplicates(sym);
  29         evaluate_symbol(sym);
  30         expand_symbol(sym);
  31         ep = linearize_symbol(sym);
  32         if (ep)
  33                 show_entry(ep);
  34 }
  35
  36 int main(int argc, char **argv)
  37 {
  38         int fd;
  39         char *filename = NULL, **args;
  40         struct token *token;
  41
  42         // Initialize symbol stream first, so that we can add defines etc
  43         init_symbols();
  44
  45         create_builtin_stream();
  46         add_pre_buffer("#define __CHECKER__ 1\n");
  47         add_pre_buffer("extern void *__builtin_memcpy(void *, const void *, unsigned long);\n");
  48         add_pre_buffer("extern void * __builtin_return_address(int);\n");
  49
  50         args = argv;
  51         for (;;) {
  52                 char *arg = *++args;
  53                 if (!arg)
  54                         break;
  55                 if (arg[0] == '-') {
  56                         args = handle_switch(arg+1, args);
  57                         continue;
  58                 }
  59                 filename = arg;
  60         }
  61
  62         // Initialize type system
  63         init_ctype();
  64
  65         fd = open(filename, O_RDONLY);
  66         if (fd < 0)
  67                 die("No such file: %s", filename);
  68
  69         // Tokenize the input stream
  70         token = tokenize(filename, fd, NULL);
  71         close(fd);
  72
  73         // Prepend any "include" file to the stream.
  74         if (include_fd >= 0)
  75                 token = tokenize(include, include_fd, token);
  76
  77         // Prepend the initial built-in stream
  78         token = tokenize_buffer(pre_buffer, pre_buffer_size, token);
  79
  80         // Pre-process the stream
  81         token = preprocess(token);
  82
  83         // Parse the resulting C code
  84         translation_unit(token, &used_list);
  85
  86         // Do type evaluation and simplify
  87         symbol_iterate(used_list, clean_up_symbol, NULL);
  88         return 0;
  89 }