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197 lines
5.7 KiB
197 lines
5.7 KiB
/*
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* Copyright 2002-2019 Intel Corporation.
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*
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* This software is provided to you as Sample Source Code as defined in the accompanying
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* End User License Agreement for the Intel(R) Software Development Products ("Agreement")
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* section 1.L.
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*
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* This software and the related documents are provided as is, with no express or implied
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* warranties, other than those that are expressly stated in the License.
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*/
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/* ===================================================================== */
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/*! @file
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Replace an original function with a custom function defined in the tool. The
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new function can have either the same or different signature from that of its
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original function.
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*/
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/* ===================================================================== */
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#include "pin.H"
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#include <iostream>
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#include <stdio.h>
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#include <stdlib.h>
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#include <fstream>
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using std::ofstream;
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using std::cerr;
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using std::string;
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using std::endl;
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static KNOB<string> KnobOutput(KNOB_MODE_WRITEONCE, "pintool", "o", "callapp_nested_tool.out", "output file");
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static ofstream out;
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int numTimesReplacedOriginal1 = 0;
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int numTimesReplacedOriginal2 = 0;
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/* ===================================================================== */
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/* ===================================================================== */
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long Original2Replacement( CONTEXT * ctxt, AFUNPTR origFunc, long param1, long param2 )
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{
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long res;
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numTimesReplacedOriginal2++;
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PIN_CallApplicationFunction( ctxt, PIN_ThreadId(),
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CALLINGSTD_DEFAULT, origFunc, NULL,
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PIN_PARG(long), &res,
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PIN_PARG(long), param1,
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PIN_PARG(long), param2,
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PIN_PARG_END() );
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return res;
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}
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long Original1Replacement( CONTEXT * ctxt, AFUNPTR origFunc, long param1, long param2 )
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{
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long res;
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numTimesReplacedOriginal1++;
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PIN_CallApplicationFunction( ctxt, PIN_ThreadId(),
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CALLINGSTD_DEFAULT, origFunc, NULL,
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PIN_PARG(long), &res,
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PIN_PARG(long), param1,
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PIN_PARG(long), param2,
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PIN_PARG_END() );
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return res;
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}
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/* ===================================================================== */
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VOID ImageLoad(IMG img, VOID *v)
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{
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if ( IMG_IsMainExecutable( img ))
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{
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#if !defined(TARGET_MAC)
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const char* orig1Name = "Original1";
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const char* orig2Name = "Original2";
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#else
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const char* orig1Name = "_Original1";
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const char* orig2Name = "_Original2";
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#endif
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PROTO proto = PROTO_Allocate( PIN_PARG(long), CALLINGSTD_DEFAULT,
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"Original1Proto", PIN_PARG(long), PIN_PARG(long),
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PIN_PARG_END() );
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VOID * pf_Original;
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RTN rtn = RTN_FindByName(img, orig1Name);
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if (RTN_Valid(rtn))
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{
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pf_Original = reinterpret_cast<VOID *>(RTN_Address(rtn));
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out << "Replacing " << RTN_Name(rtn) << " in " << IMG_Name(img) << endl;
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RTN_ReplaceSignature(
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rtn, AFUNPTR(Original1Replacement),
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IARG_PROTOTYPE, proto,
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IARG_CONTEXT,
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IARG_PTR, pf_Original,
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IARG_ADDRINT, 1,
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IARG_ADDRINT, 2,
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IARG_END);
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}
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else
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{
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out << "Original cannot be found." << endl;
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exit(1);
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}
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PROTO_Free( proto );
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proto = PROTO_Allocate( PIN_PARG(long), CALLINGSTD_DEFAULT,
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"Original2Proto", PIN_PARG(long), PIN_PARG(long),
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PIN_PARG_END() );
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rtn = RTN_FindByName(img, orig2Name);
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if (RTN_Valid(rtn))
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{
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pf_Original = reinterpret_cast<VOID *>(RTN_Address(rtn));
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out << "Replacing " << RTN_Name(rtn) << " in " << IMG_Name(img) << endl;
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RTN_ReplaceSignature(
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rtn, AFUNPTR(Original2Replacement),
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IARG_PROTOTYPE, proto,
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IARG_CONTEXT,
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IARG_PTR, pf_Original,
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IARG_ADDRINT, 1,
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IARG_ADDRINT, 2,
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IARG_END);
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}
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else
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{
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out << "Original2 cannot be found." << endl;
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exit(1);
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}
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PROTO_Free( proto );
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}
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}
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VOID Fini(INT32 code, VOID *v)
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{
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if (10 != numTimesReplacedOriginal1)
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{
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out << "***ERROR numTimesReplacedOriginal1 " << numTimesReplacedOriginal1 << "is unexpected\n";
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exit(-1);
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}
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if (10 != numTimesReplacedOriginal2)
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{
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out << "***ERROR numTimesPreOriginalReplaced " << numTimesReplacedOriginal2 << " is unexpected\n";
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exit(-1);
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}
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}
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/* ===================================================================== */
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/* Print Help Message */
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/* ===================================================================== */
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INT32 Usage()
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{
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cerr << "Nested application call from tool." << endl;
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cerr << endl << KNOB_BASE::StringKnobSummary() << endl;
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return -1;
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}
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/* ===================================================================== */
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int main(INT32 argc, CHAR *argv[])
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{
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PIN_InitSymbols();
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if (PIN_Init(argc, argv)) return Usage();
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out.open(KnobOutput.Value().c_str());
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IMG_AddInstrumentFunction(ImageLoad, 0);
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PIN_AddFiniFunction(Fini, 0);
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PIN_StartProgram();
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return 0;
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}
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/* ===================================================================== */
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/* eof */
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/* ===================================================================== */
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