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130 lines
2.9 KiB
130 lines
2.9 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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/*! @file
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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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#include <stdlib.h>
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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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/*
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* This test puts a probe in very short function and checks how Pin
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* moves thread IP, if it fails on probe
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*/
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/* ===================================================================== */
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/* Commandline Switches */
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/* ===================================================================== */
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KNOB<string> KnobOutputFile(KNOB_MODE_WRITEONCE, "pintool",
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"o", "probe_tool.outfile", "specify file name");
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ofstream TraceFile;
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/* ===================================================================== */
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INT32 Usage()
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{
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cerr <<
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"This pin tool tests probe replacement.\n"
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"\n";
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cerr << KNOB_BASE::StringKnobSummary();
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cerr << endl;
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return -1;
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}
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void Do_Nothing()
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{
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int x = 0;
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while(1)
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{
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x++;
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--x;
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}
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}
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UINT32 threadCounter=0;
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VOID AttachedThreadStart( VOID *sigmask, VOID *v)
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{
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TraceFile << "Thread counter is updated to " << dec << ++threadCounter << endl;
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}
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int PinReady(unsigned int numOfThreads)
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{
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return (threadCounter == numOfThreads)?1:0;
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}
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/* ===================================================================== */
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// Called every time a new image is loaded
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// Look for routines that we want to probe
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VOID ImageLoad(IMG img, VOID *v)
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{
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RTN rtn = RTN_FindByName(img, "ShortFunc");
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if (RTN_Valid(rtn))
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{
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RTN_ReplaceProbed( rtn, AFUNPTR( Do_Nothing ) );
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}
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rtn = RTN_FindByName(img, "ShortFunc2");
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if (RTN_Valid(rtn))
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{
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RTN_ReplaceProbed( rtn, AFUNPTR( Do_Nothing ) );
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}
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rtn = RTN_FindByName(img, "ThreadsReady");
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if (RTN_Valid(rtn))
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{
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if (!RTN_IsSafeForProbedReplacement(rtn))
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{
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fprintf(stderr, "Can't replace ThreadsReady\n");
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exit(-1);
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}
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RTN_ReplaceProbed(rtn, AFUNPTR(PinReady));
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}
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}
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/* ===================================================================== */
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int main(int argc, CHAR *argv[])
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{
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PIN_InitSymbols();
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if( PIN_Init(argc,argv) )
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{
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return Usage();
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}
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TraceFile.open(KnobOutputFile.Value().c_str());
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TraceFile << hex;
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TraceFile.setf(ios::showbase);
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IMG_AddInstrumentFunction(ImageLoad, 0);
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PIN_AddThreadAttachProbedFunction(AttachedThreadStart, 0);
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PIN_StartProgramProbed();
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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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