/*
 * 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.
 */

//
// This tool prints a trace of image load and unload events
//

#include "pin.H"
#include <iostream>
#include <fstream>
#include <stdio.h>

using std::string;
using std::endl;
using std::cout;
using std::ofstream;

KNOB<string> KnobOutputFile(KNOB_MODE_WRITEONCE, "pintool",
    "o", "load_dummy.out", "specify file name");

ofstream TraceFile;

// Pin calls this function every time a new img is loaded
VOID ImageLoad(IMG img, VOID *v)
{
    TraceFile << IMG_Name(img).c_str() << " loaded" << endl;
}

// Pin calls this function every time an img is unloaded
VOID ImageUnload(IMG img, VOID *v)
{
    TraceFile << IMG_Name(img).c_str() << " unloaded" << endl;;
}

// argc, argv are the entire command line, including pin -t <toolname> -- ...
int main(int argc, char * argv[])
{
    // Initialize symbol processing
    PIN_InitSymbols();
    
    // Initialize pin
    if (PIN_Init(argc, argv) != 0)
    {
        return 1;
    }

    TraceFile.open(KnobOutputFile.Value().c_str());

    // Register ImageLoad to be called when an image is loaded
    IMG_AddInstrumentFunction(ImageLoad, 0);

    // Register ImageUnload to be called when an image is unloaded
    IMG_AddUnloadFunction(ImageUnload, 0);

    // Start the program, never returns
    if (PIN_IsProbeMode()) 
    {
        PIN_StartProgramProbed();
    }
    
    else 
    {
        PIN_StartProgram();
    }

    return 0;
}