TCC with Visual Studio 2012

Question

I am trying to integrate Visual C++ 2012 and TCC in such as way as to send in a C function (as a string) into the tcc compiler (libtcc.dll). I have added the libtcc.h header file, though I am unsure how to add the libtcc.dll since there is no corresponding .lib file. I am using the libtcc_test.c file in the TCC distribution as my Win32 main() function.

Here is my main:

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "stdafx.h"
#include "libtcc.h"

int add(int a, int b)
{
    return a + b;
}

char my_program[] =
"int fib(int n)\n"
"{\n"
"    if (n <= 2)\n"
"        return 1;\n"
"    else\n"
"        return fib(n-1) + fib(n-2);\n"
"}\n"
"\n"
"int foo(int n)\n"
"{\n"
"    printf(\"Hello World!\\n\");\n"
"    printf(\"fib(%d) = %d\\n\", n, fib(n));\n"
"    printf(\"add(%d, %d) = %d\\n\", n, 2 * n, add(n, 2 * n));\n"
"    return 0;\n"
"}\n";

int main(int argc, char **argv)
{
    TCCState *s;
    int (*func)(int);

    s = tcc_new();
    if (!s) {
        fprintf(stderr, "Could not create tcc state\n");
        exit(1);
    }

    /* if tcclib.h and libtcc1.a are not installed, where can we find them */
    if (argc == 2 && !memcmp(argv[1], "lib_path=",9))
        tcc_set_lib_path(s, argv[1]+9);

    /* MUST BE CALLED before any compilation */
    tcc_set_output_type(s, TCC_OUTPUT_MEMORY);

    if (tcc_compile_string(s, my_program) == -1)
        return 1;

    /* as a test, we add a symbol that the compiled program can use.
        You may also open a dll with tcc_add_dll() and use symbols from that */
    tcc_add_symbol(s, "add", add);

    /* relocate the code */
    if (tcc_relocate(s, TCC_RELOCATE_AUTO) < 0)
        return 1;

    /* get entry symbol */
    func = tcc_get_symbol(s, "foo");
    if (!func)
        return 1;

    /* run the code */
    func(32);

    /* delete the state */
    tcc_delete(s);

    return 0;
}

When I attempt to run it, I get the following errors in Visual Studio 2012:

error C3861: 'exit': identifier not found
error C3861: 'memcmp': identifier not found
error C2440: '=' : cannot convert from 'void *' to 'int (__cdecl *)(int)'

Does anybody have a solution to this?

Thanks!

Answer 1

The easiest way I think is to make a .lib file, and then use it for linking. Please see MSDN page at http://msdn.microsoft.com/en-us/library/0b9xe492.aspx on how to create a .lib file from a .def file. After this, you can use normal way of specifying a .lib to link against.