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122 lines
3.0 KiB
122 lines
3.0 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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/*! @file
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*/
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#include "pin.H"
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#include <cstdlib>
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#include <cstring>
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#include <iostream>
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#include <fstream>
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#include "tool_macros.h"
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using std::cout;
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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::ofstream;
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using std::endl;
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using std::string;
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/* ===================================================================== */
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/* Global Variables */
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/* ===================================================================== */
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ofstream TraceFile;
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static void (*pf_dn)();
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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", "probe2.outfile", "specify file name");
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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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if (pf_dn)
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{
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(*pf_dn)();
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TraceFile << "Doing nothing." << endl;
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}
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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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cout << "Processing " << IMG_Name( img ) << endl;
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RTN rtn = RTN_FindByName(img, C_MANGLE("do_nothing"));
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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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TraceFile << "Cannot replace " << RTN_Name(rtn) << " in " << IMG_Name(img) << endl;
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}
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pf_dn = (void (*)())RTN_ReplaceProbed( rtn, AFUNPTR( Do_Nothing ) );
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TraceFile << "Inserted probe for do_nothing:" << IMG_Name(img) << endl;
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}
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cout << "Completed " << IMG_Name( img ) << endl;
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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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char * s = getenv("LD_ASSUME_KERNEL");
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if (s == 0)
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printf("LD_ASSUME_KERNEL not set\n");
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else if (strcmp(s,"2.4.1") != 0)
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printf("LD_ASSUME_KERNEL is wrong: %s\n",s);
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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_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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