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134 lines
4.0 KiB
134 lines
4.0 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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#include "pin.H"
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#include <iostream>
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#include <fstream>
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using std::ofstream;
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using std::string;
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using std::ios;
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using std::hex;
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using std::cerr;
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using std::dec;
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using std::endl;
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KNOB<string> KnobOutputFile(KNOB_MODE_WRITEONCE, "pintool",
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"o", "invocation.out", "specify output file name");
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ofstream OutFile;
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/*
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* Analysis routines
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*/
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VOID Taken( const CONTEXT * ctxt)
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{
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ADDRINT TakenIP = (ADDRINT)PIN_GetContextReg( ctxt, REG_INST_PTR );
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OutFile << "Taken: IP = " << hex << TakenIP << dec << endl;
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}
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VOID Before(CONTEXT * ctxt)
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{
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ADDRINT BeforeIP = (ADDRINT)PIN_GetContextReg( ctxt, REG_INST_PTR);
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OutFile << "Before: IP = " << hex << BeforeIP << dec << endl;
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}
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VOID After(CONTEXT * ctxt)
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{
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ADDRINT AfterIP = (ADDRINT)PIN_GetContextReg( ctxt, REG_INST_PTR);
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OutFile << "After: IP = " << hex << AfterIP << dec << endl;
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}
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/*
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* Instrumentation routines
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*/
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VOID ImageLoad(IMG img, VOID *v)
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{
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for (SEC sec = IMG_SecHead(img); SEC_Valid(sec); sec = SEC_Next(sec))
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{
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// RTN_InsertCall() and INS_InsertCall() are executed in order of
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// appearance. In the code sequence below, the IPOINT_AFTER is
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// executed before the IPOINT_BEFORE.
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for (RTN rtn = SEC_RtnHead(sec); RTN_Valid(rtn); rtn = RTN_Next(rtn))
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{
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// Open the RTN.
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RTN_Open( rtn );
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// IPOINT_AFTER is implemented by instrumenting each return
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// instruction in a routine. Pin tries to find all return
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// instructions, but success is not guaranteed.
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RTN_InsertCall( rtn, IPOINT_AFTER, (AFUNPTR)After,
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IARG_CONTEXT, IARG_END);
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// Examine each instruction in the routine.
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for( INS ins = RTN_InsHead(rtn); INS_Valid(ins); ins = INS_Next(ins) )
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{
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if( INS_IsRet(ins) )
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{
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// instrument each return instruction.
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// IPOINT_TAKEN_BRANCH always occurs last.
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INS_InsertCall( ins, IPOINT_BEFORE, (AFUNPTR)Before,
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IARG_CONTEXT, IARG_END);
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INS_InsertCall( ins, IPOINT_TAKEN_BRANCH, (AFUNPTR)Taken,
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IARG_CONTEXT, IARG_END);
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}
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}
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// Close the RTN.
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RTN_Close( rtn );
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}
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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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OutFile.close();
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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 << "This is the invocation pintool" << 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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/* Main */
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/* ===================================================================== */
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int main(int argc, char * argv[])
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{
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// Initialize pin & symbol manager
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if (PIN_Init(argc, argv)) return Usage();
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PIN_InitSymbols();
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// Register ImageLoad to be called to instrument instructions
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IMG_AddInstrumentFunction(ImageLoad, 0);
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PIN_AddFiniFunction(Fini, 0);
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// Write to a file since cout and cerr maybe closed by the application
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OutFile.open(KnobOutputFile.Value().c_str());
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OutFile.setf(ios::showbase);
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// Start the program, never returns
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PIN_StartProgram();
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return 0;
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}
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/* ===================================================================== */
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