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186 lines
5.2 KiB
186 lines
5.2 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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/* ===================================================================== */
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/* ===================================================================== */
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/*! @file
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Generates a trace of malloc/free calls
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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 "tool_macros.h"
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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::flush;
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using std::ofstream;
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using std::endl;
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/* ===================================================================== */
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/* Global Variables */
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/* ===================================================================== */
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typedef VOID * (*FUNCPTR_MALLOC)(size_t);
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typedef VOID (*FUNCPTR_FREE)(void *);
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typedef VOID (*FUNCPTR_EXIT)(int);
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VOID * Probe_Malloc_IA32( FUNCPTR_MALLOC orgFuncptr, size_t arg0 );
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VOID Probe_Free_IA32( FUNCPTR_FREE orgFuncptr, void * arg0 );
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VOID Probe_Exit_IA32( FUNCPTR_EXIT orgFuncptr, int code );
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ofstream TraceFile;
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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", "probemalloctrace.outfile", "specify trace 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 collects an instruction trace for debugging\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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/* ===================================================================== */
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// Called every time a new image is loaded.
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// Look for routines that we want to replace.
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VOID ImageLoad(IMG img, VOID *v)
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{
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RTN mallocRtn = RTN_FindByName(img, C_MANGLE("malloc"));
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if ( RTN_Valid(mallocRtn) && RTN_IsSafeForProbedReplacement(mallocRtn) )
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{
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PROTO proto_malloc = PROTO_Allocate( PIN_PARG(void *), CALLINGSTD_DEFAULT,
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"malloc", PIN_PARG(size_t), PIN_PARG_END() );
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RTN_ReplaceSignatureProbed(
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mallocRtn, AFUNPTR( Probe_Malloc_IA32 ),
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IARG_PROTOTYPE, proto_malloc,
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IARG_ORIG_FUNCPTR,
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IARG_FUNCARG_ENTRYPOINT_VALUE, 0,
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IARG_END);
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TraceFile << "Replaced malloc() in:" << IMG_Name(img) << endl;
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}
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RTN freeRtn = RTN_FindByName(img, C_MANGLE("free"));
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if ( RTN_Valid(freeRtn) && RTN_IsSafeForProbedReplacement(freeRtn) )
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{
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PROTO proto_free = PROTO_Allocate( PIN_PARG(void), CALLINGSTD_DEFAULT,
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"free", PIN_PARG(void *), PIN_PARG_END() );
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RTN_ReplaceSignatureProbed(
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freeRtn, AFUNPTR( Probe_Free_IA32 ),
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IARG_PROTOTYPE, proto_free,
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IARG_ORIG_FUNCPTR,
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IARG_FUNCARG_ENTRYPOINT_VALUE, 0,
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IARG_END);
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TraceFile << "Replaced free() in:" << IMG_Name(img) << endl;
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}
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RTN exitRtn = RTN_FindByName(img, C_MANGLE("exit"));
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if (RTN_Valid(exitRtn) && RTN_IsSafeForProbedReplacement(exitRtn) )
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{
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PROTO proto_exit = PROTO_Allocate( PIN_PARG(void), CALLINGSTD_DEFAULT,
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"exit", PIN_PARG(int), PIN_PARG_END() );
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RTN_ReplaceSignatureProbed(
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exitRtn, AFUNPTR( Probe_Exit_IA32 ),
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IARG_PROTOTYPE, proto_exit,
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IARG_ORIG_FUNCPTR,
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IARG_FUNCARG_ENTRYPOINT_VALUE, 0,
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IARG_END);
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TraceFile << "Replaced exit() in:" << IMG_Name(img) << endl;
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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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TraceFile << "Probe mode" << endl;
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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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VOID * Probe_Malloc_IA32( FUNCPTR_MALLOC orgFuncptr, size_t size)
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{
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VOID * v = orgFuncptr(size);
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TraceFile << "malloc(" << size << ") returns " << v << endl;
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return v;
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}
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/* ===================================================================== */
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VOID Probe_Free_IA32( FUNCPTR_FREE orgFuncptr, void * ptr)
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{
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orgFuncptr(ptr);
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TraceFile << "free(" << ptr << ")" << endl;
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}
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/* ===================================================================== */
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VOID Probe_Exit_IA32( FUNCPTR_EXIT orgFuncptr, int code)
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{
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if (TraceFile.is_open())
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{
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TraceFile << "## eof" << endl << flush;
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TraceFile.close();
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}
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orgFuncptr(code);
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}
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/* ===================================================================== */
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/* eof */
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/* ===================================================================== */
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