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First, we must install Pintool:

http://www.pintool.org/

In the folder source/tools/SimpleExamples we create a CPP file, for example MyMallocTrace.cpp:

/* ===================================================================== */ /* @ORIGINAL_AUTHOR: Robert Cohn @AUTHOR: José L. Risco-Martín */ /* ===================================================================== */ /*! @file * This file contains an ISA-portable PIN tool for tracing calls to malloc */ #include "pin.H" #include <iostream> #include <fstream> #include <time.h> /* ===================================================================== */ /* Names of malloc and free */ /* ===================================================================== */ #if defined(TARGET_MAC) #define MALLOC "_malloc" #define FREE "_free" #else #define MALLOC "malloc" #define FREE "free" #endif /* ===================================================================== */ /* Global Variables */ /* ===================================================================== */ std::ofstream TraceFile; /* ===================================================================== */ /* Commandline Switches */ /* ===================================================================== */ KNOB<string> KnobOutputFile(KNOB_MODE_WRITEONCE, "pintool", "o", "MyMallocTrace.mem", "specify trace file name"); /* ===================================================================== */ /* Print Help Message */ /* ===================================================================== */ INT32 Usage() { cerr << "This tool produces a trace of calls to malloc.\n" "\n"; cerr << KNOB_BASE::StringKnobSummary(); cerr << endl; return -1; } /* ===================================================================== */ VOID MallocBefore(CHAR * name, ADDRINT size) { TraceFile << name << " " << (1.0*clock())/CLOCKS_PER_SEC << " " << size; } /* ===================================================================== */ VOID FreeBefore(CHAR * name, ADDRINT addr) { TraceFile << name << " " << (1.0*clock())/CLOCKS_PER_SEC << " " << addr << endl; } /* ===================================================================== */ VOID MallocAfter(ADDRINT addr) { TraceFile << " " << addr << endl; } /* ===================================================================== */ VOID Image(IMG img, VOID *v) { RTN mallocRtn = RTN_FindByName(img, MALLOC); if (RTN_Valid(mallocRtn)) { RTN_Open(mallocRtn); RTN_InsertCall(mallocRtn, IPOINT_BEFORE, (AFUNPTR)MallocBefore, IARG_ADDRINT, MALLOC, IARG_G_ARG0_CALLEE, IARG_END); RTN_InsertCall(mallocRtn, IPOINT_AFTER, (AFUNPTR)MallocAfter, IARG_G_RESULT0, IARG_END); RTN_Close(mallocRtn); } RTN freeRtn = RTN_FindByName(img, FREE); if (RTN_Valid(freeRtn)) { RTN_Open(freeRtn); RTN_InsertCall(freeRtn, IPOINT_BEFORE, (AFUNPTR)FreeBefore, IARG_ADDRINT, FREE, IARG_G_ARG0_CALLEE, IARG_END); RTN_Close(freeRtn); } } /* ===================================================================== */ VOID Fini(INT32 code, VOID *v) { TraceFile.close(); } /* ===================================================================== */ /* Main */ /* ===================================================================== */ int main(int argc, char *argv[]) { PIN_InitSymbols(); if( PIN_Init(argc,argv) ) { return Usage(); } TraceFile.open(KnobOutputFile.Value().c_str()); //TraceFile << hex; //TraceFile.setf(ios::showbase); //cout << hex; //cout.setf(ios::showbase); IMG_AddInstrumentFunction(Image, 0); PIN_AddFiniFunction(Fini, 0); // Never returns PIN_StartProgram(); return 0; } /* ===================================================================== */ /* eof */ /* ===================================================================== */

Now we edit the makefile (in the same folder). We insert the CPP created:

… TOOL_ROOTS = dcache edgcnt pinatrace trace icount inscount2_mt opcodemix malloctrace MyMallocTrace calltrace \

       	jumpmix toprtn catmix regmix ilenmix coco

… TEST_TOOLS_ROOTS = dcache edgcnt pinatrace trace icount opcodemix malloctrace MyMallocTrace calltrace \

             	jumpmix toprtn catmix regmix inscount2_mt

In the same folder we compile:

make dir MyMallocTrace.so.test

And we execute any binary file with PIN:

../../../pin -t obj-ia32/MyMallocTrace.so – boxed-sim

The result is a profiling report called: MyMallocTrace.mem

Now generate the grammar rules for this profiling report:

java -jar GrammarGenerator.jar <PathToProfilingReport>

where:

<ProfilingReport>: Relative path to the profiling report including malloc/free entries

Now download GEA (DmmExplorer.jar):

java -jar DmmExplorer.jar -p <PathToProfilingReport> [-d <KINGSLEY,LEA,FIBONACCI,SEGREGATED,EXACT,GE> (default: KINGSLEY)] [-g <NumberOfGenerations> (default: 100)] [-i <NumberOfIndividuals> (default: 60)] [-o <GlobalOptimum>]

java -jar DmmExplorer.jar -p boxed-sim.mem -d LEA,GE -g 80 -i 30

where:

-p <ProfilingReport>: Relative path to the profiling report including malloc/free entries

-d <KINGSLEY,LEA,FIBONACCI,SEGREGATED,EXACT,GE>: Is the DMM simulator selected. GE will find a custom DMM using Grammatical evolution )(a .bnf file is needed in the same path that the profiling report).

-g <NumberOfGenerations>: Number of generations for GE (default is 100)

-i <NumberOfIndividuals>: Number of individuals for GE (default is 60)

-o <GlobalOptimum>: GE stops when GlobalOptimum is reached (default is 0.0)

If using GE, you will obtain two files (mtr and map extension). The map file is a description of the resultant DMM that can be implemented with the real DMM library. The second file (.mtr extension) contains all the metrics obtained with the GE algorithm.

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dmmreadme.1291883289.txt.gz · Last modified: 2010/12/09 09:28 by Tecnicos Artecs