itrace.cpp

/*BEGIN_LEGAL 
Intel Open Source License 

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#include <stdio.h>
#include <map>
#include <algorithm>
#include "pin.H"

PIN_LOCK lock;
std::map<ADDRINT, uint64_t> coverage;

// This function is called before every instruction is executed
// and prints the IP
VOID printip(ADDRINT ip, THREADID tid) { 
  PIN_GetLock(&lock, tid);

  std::map<ADDRINT, uint64_t>::iterator it = coverage.find(ip);
  if (it == coverage.end()) {
    coverage[ip] = 1;
  } else {
    coverage[ip] = std::min(UINT64_MAX-1, coverage[ip]+1);
  }

  PIN_ReleaseLock(&lock);
}

// Pin calls this function every time a new instruction is encountered
VOID Instruction(INS ins, VOID *v)
{
  if (INS_Valid(ins) ) {
    RTN r = INS_Rtn(ins);
    if (RTN_Valid(r)) {
      SEC s = RTN_Sec(r);
	    if (SEC_Valid(s)) {
        IMG img = SEC_Img(s);
        if (INS_IsDirectBranchOrCall(ins) && IMG_Valid(img) && IMG_IsMainExecutable(img) ) { 
          INS_InsertCall(ins, IPOINT_BEFORE, (AFUNPTR)printip, IARG_INST_PTR, IARG_THREAD_ID, IARG_END);
        }
	    }
    }
  }
}

// This function is called when the application exits
VOID Fini(INT32 code, VOID *v)
{
    FILE *trace = fopen("itrace.out", "w");
    for (std::pair<ADDRINT,uint64_t> a : coverage) {
      fprintf(trace, "%lu:%lu\n", a.first, a.second);
    }
    fclose(trace);
}

/* ===================================================================== */
/* Print Help Message                                                    */
/* ===================================================================== */

INT32 Usage()
{
    PIN_ERROR("This Pintool prints the IPs of every instruction executed\n" 
              + KNOB_BASE::StringKnobSummary() + "\n");
    return -1;
}

/* ===================================================================== */
/* Main                                                                  */
/* ===================================================================== */

int main(int argc, char * argv[])
{ 
    PIN_InitLock(&lock);
    
    // Initialize pin
    if (PIN_Init(argc, argv)) return Usage();

    // Register Instruction to be called to instrument instructions
    INS_AddInstrumentFunction(Instruction, 0);

    // Register Fini to be called when the application exits
    PIN_AddFiniFunction(Fini, 0);
    
    // Start the program, never returns
    PIN_StartProgram();
    
    return 0;
}