aboutsummaryrefslogtreecommitdiff
blob: 74b991debee5fe592b8274d0303c9522ec71c805 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
/*
 * Parse and linearize the tree for testing.
 *
 * Copyright (C) 2003 Transmeta Corp.
 *               2003-2004 Linus Torvalds
 *
 * Licensed under the Open Software License version 1.1
 */
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <fcntl.h>

#include "lib.h"
#include "token.h"
#include "parse.h"
#include "symbol.h"
#include "expression.h"
#include "linearize.h"

static void clean_up_symbol(struct symbol *sym, void *_parent, int flags)
{
	check_duplicates(sym);
	evaluate_symbol(sym);
	expand_symbol(sym);
	linearize_symbol(sym);
}

int main(int argc, char **argv)
{
	int fd;
	char *filename = NULL, **args;
	struct token *token;

	// Initialize symbol stream first, so that we can add defines etc
	init_symbols();

	create_builtin_stream();
	add_pre_buffer("#define __CHECKER__ 1\n");
	add_pre_buffer("extern void *__builtin_memcpy(void *, const void *, unsigned long);\n");
	add_pre_buffer("extern void * __builtin_return_address(int);\n");

	args = argv;
	for (;;) {
		char *arg = *++args;
		if (!arg)
			break;
		if (arg[0] == '-') {
			args = handle_switch(arg+1, args);
			continue;
		}
		filename = arg;
	}
		

	fd = open(filename, O_RDONLY);
	if (fd < 0)
		die("No such file: %s", filename);

	// Tokenize the input stream
	token = tokenize(filename, fd, NULL);
	close(fd);

	// Prepend any "include" file to the stream.
	if (include_fd >= 0)
		token = tokenize(include, include_fd, token);

	// Prepend the initial built-in stream
	token = tokenize_buffer(pre_buffer, pre_buffer_size, token);

	// Pre-process the stream
	token = preprocess(token);

	// Parse the resulting C code
	translation_unit(token, &used_list);

	// Do type evaluation and simplify
	symbol_iterate(used_list, clean_up_symbol, NULL);
	return 0;
}