/*
 * 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.
 */

/*! @file
 *  This file contains an ISA-portable PIN tool for counting dynamic instructions
 */

#include "pin.H"
#include <iostream>
using std::cerr;
using std::endl;

/* ===================================================================== */
/* Global Variables */
/* ===================================================================== */

UINT64 ins_count = 0;

/* ===================================================================== */
/* Commandline Switches */
/* ===================================================================== */


/* ===================================================================== */
/* Print Help Message                                                    */
/* ===================================================================== */

INT32 Usage()
{
    cerr <<
        "This tool prints out the number of dynamic instructions executed to stderr.\n"
        "\n";

    cerr << KNOB_BASE::StringKnobSummary();

    cerr << endl;

    return -1;
}

/* ===================================================================== */

VOID docount()
{
    ins_count++;
}

/* ===================================================================== */

VOID Instruction(INS ins, VOID *v)
{
    INS_InsertCall(ins, IPOINT_BEFORE, (AFUNPTR)docount, IARG_END);
}

/* ===================================================================== */

VOID Fini(INT32 code, VOID *v)
{
    cerr <<  "Count " << ins_count  << endl;
    
}

/* ===================================================================== */
/* Main                                                                  */
/* ===================================================================== */

int main(int argc, char *argv[])
{
    if( PIN_Init(argc,argv) )
    {
        return Usage();
    }
    

    INS_AddInstrumentFunction(Instruction, 0);
    PIN_AddFiniFunction(Fini, 0);

    // Never returns
    PIN_StartProgram();
    
    return 0;
}

/* ===================================================================== */
/* eof */
/* ===================================================================== */