/*
 * 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
 * Insert a call before/after a function in probe mode.
 */

/* ===================================================================== */
#include "pin.H"
#if defined (TARGET_WINDOWS)
namespace WINDOWS
{
#include<Windows.h>
}
#endif
#include <cstdlib>
#include <iostream>
#include "tool_macros.h"
using std::flush;
using std::dec;
using std::hex;
using std::cout;
using std::endl;


/* ===================================================================== */
/* Analysis routines  */
/* ===================================================================== */

VOID Before( ADDRINT ebx, ADDRINT ebp, ADDRINT esp )
{
    cout << "Before:   ebx/r15 = " << hex << ebx 
         << "  ebp/rbp = " << ebp 
         << "  esp/rsp = " << esp << dec << endl;
}

VOID After( REG reg )
{
    cout << "After: return value = " << reg << endl << flush;
}


/* ===================================================================== */
/* Instrumentation routines  */
/* ===================================================================== */

VOID Sanity(IMG img, RTN rtn)
{
    if ( PIN_IsProbeMode() && ! RTN_IsSafeForProbedInsertion( rtn ) )
    {
        cout << "Cannot insert calls around " << RTN_Name(rtn) <<
            "() in " << IMG_Name(img) << endl;
        exit(1);
    }
}

/* ===================================================================== */
VOID ImageLoad(IMG img, VOID *v)
{
    RTN rtn = RTN_FindByName(img, C_MANGLE("Bar9"));
    if (RTN_Valid(rtn))
    {
        Sanity(img, rtn);
        
        PROTO proto = PROTO_Allocate( PIN_PARG(int), CALLINGSTD_DEFAULT,
                                      "Bar9", PIN_PARG(int), PIN_PARG(int),
                                      PIN_PARG(int), PIN_PARG(int),
                                      PIN_PARG(int), PIN_PARG(int),
                                      PIN_PARG(int), PIN_PARG(int),
                                      PIN_PARG(int), 
                                      PIN_PARG_END() );
#if defined (TARGET_IA32)        
        RTN_InsertCallProbed(
            rtn, IPOINT_BEFORE, AFUNPTR( Before ),
            IARG_PROTOTYPE, proto,
            IARG_REG_VALUE, REG_EBX,
            IARG_REG_VALUE, REG_EBP,
            IARG_REG_VALUE, REG_ESP,
            IARG_END);
#else
        RTN_InsertCallProbed(
            rtn, IPOINT_BEFORE, AFUNPTR( Before ),
            IARG_PROTOTYPE, proto,
            IARG_REG_VALUE, REG_R15,
            IARG_REG_VALUE, REG_RBP,
            IARG_REG_VALUE, REG_RSP,
            IARG_END);
#endif        
        RTN_InsertCallProbed(
            rtn, IPOINT_AFTER, AFUNPTR( After ),
            IARG_PROTOTYPE, proto,
            IARG_REG_VALUE, REG_GAX,
            IARG_END);

        PROTO_Free( proto );
    }

}



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

int main(INT32 argc, CHAR *argv[])
{
    PIN_InitSymbols();
    
    PIN_Init(argc, argv);
    
    IMG_AddInstrumentFunction(ImageLoad, 0);
    
    PIN_StartProgramProbed();
    
    return 0;
}



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