/*
 * Copyright 2002-2019 Intel Corporation.
 * 
 * This software is provided to you as Sample Source Code as defined in the accompanying
 * End User License Agreement for the Intel(R) Software Development Products ("Agreement")
 * section 1.L.
 * 
 * This software and the related documents are provided as is, with no express or implied
 * warranties, other than those that are expressly stated in the License.
 */

#include <stdio.h>
#include <string>

#include "pin.H"

namespace WND
{
#include <windows.h>
}

typedef int (* foo_t)();

static AFUNPTR foo_ptr;

static int foo_rep()
{
	printf("foo called\n");

	return ((foo_t)foo_ptr)();
}

static VOID on_module_loading(IMG img, VOID *data)
{
    if (IMG_IsMainExecutable(img))
	{
		RTN routine = RTN_FindByName(img, "foo");
		if (!RTN_Valid(routine))
		{
            routine = RTN_FindByName(img, "_foo");
        }

		if (RTN_Valid(routine))
		{
			foo_ptr = RTN_ReplaceProbed(routine, (AFUNPTR)(foo_rep));
		}
	}
}

int main(int argc, char** argv)
{
    PIN_InitSymbols();

    if (!PIN_Init(argc, argv))
    {
        IMG_AddInstrumentFunction(on_module_loading,  0);        

        PIN_StartProgramProbed();
    }

    exit(1);
}