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83 lines
2.1 KiB
83 lines
2.1 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 <fstream>
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#include "pin.H"
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using std::dec;
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using std::ofstream;
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using std::hex;
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using std::string;
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using std::endl;
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static void OnSig(THREADID, CONTEXT_CHANGE_REASON, const CONTEXT *, CONTEXT *, INT32, VOID *);
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static void OnEnd(INT32, VOID *);
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std::vector<ADDRINT> Stack;
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KNOB<string> KnobOutputFile(KNOB_MODE_WRITEONCE, "pintool", "o", "inscount.out",
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"specify output file name");
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ofstream OutFile;
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INT32 Usage()
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{
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OutFile << endl << KNOB_BASE::StringKnobSummary() << endl;
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return -1;
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}
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int main(int argc, char * argv[])
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{
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if (PIN_Init(argc, argv)) return Usage();
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OutFile.open(KnobOutputFile.Value().c_str());
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PIN_AddContextChangeFunction(OnSig, 0);
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PIN_AddFiniFunction(OnEnd, 0);
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PIN_StartProgram();
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return 0;
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}
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static void OnSig(THREADID threadIndex, CONTEXT_CHANGE_REASON reason, const CONTEXT *ctxtFrom,
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CONTEXT *ctxtTo, INT32 sig, VOID *v)
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{
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switch (reason)
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{
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case CONTEXT_CHANGE_REASON_SIGNAL:
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Stack.push_back(PIN_GetContextReg(ctxtFrom, REG_INST_PTR));
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break;
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case CONTEXT_CHANGE_REASON_SIGRETURN:
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{
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ADDRINT savedPC = Stack.back();
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ADDRINT returnPC = PIN_GetContextReg(ctxtTo, REG_INST_PTR);
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if (savedPC != returnPC)
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{
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OutFile << "Handler does not return to original location: saved=" << hex << savedPC <<
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" return=" << returnPC << dec << endl;
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}
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Stack.pop_back();
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break;
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}
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default:
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OutFile << "Unexpected CONTEXT_CHANGE_REASON " << reason << ", exiting the test." << endl;
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PIN_ExitProcess(1);
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break;
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}
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}
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static void OnEnd(INT32 code, VOID *v)
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{
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OutFile << "Program exitted with " << Stack.size() << " signal frames pending" << endl;
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}
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