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138 lines
4.3 KiB
138 lines
4.3 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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* This tool performs IARG_MEMORYXX_SIZE check on fxsave and fxrstor
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*/
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#include <fstream>
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#include <iostream>
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#include <utility>
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#include <cstdlib>
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#include "pin.H"
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using std::ostream;
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using std::cerr;
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using std::string;
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using std::endl;
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using std::ofstream;
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KNOB<string> KnobOutputFile(KNOB_MODE_WRITEONCE, "pintool",
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"o", "", "specify output file name");
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static ostream* out = NULL;
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#define DELETE_OUT if (&cerr != out) delete out
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/* =====================================================================
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* Called upon bad command line argument
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* ===================================================================== */
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INT32 Usage()
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{
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cerr <<
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"This tool performs IARG_MEMORYXX_SIZE check on fxsave and fxrstor" << endl;
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cerr << KNOB_BASE::StringKnobSummary() << endl;
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return 1;
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}
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/* =====================================================================
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* Called upon program finish
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* ===================================================================== */
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VOID Fini(int, VOID * v)
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{
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*out << "Fini" << endl;
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DELETE_OUT;
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}
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/* =====================================================================
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* The analysis routine that is instrumented before FXSAVE instruction
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* ===================================================================== */
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VOID MemOpAnalysisFXSAVE(const UINT32 size)
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{
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if (FPSTATE_SIZE_FXSAVE != size)
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{
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*out << "mismatch of fxsave size. exiting..." << endl;
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DELETE_OUT;
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PIN_ExitProcess(1);
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}
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*out << "FXSAVE of size " << size << endl;
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}
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/* =====================================================================
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* The analysis routine that is instrumented before FXRSTOR instruction
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* ===================================================================== */
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VOID MemOpAnalysisFXRSTOR(const UINT32 size)
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{
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if (FPSTATE_SIZE_FXSAVE != size)
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{
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*out << "mismatch of fxsave size. exiting..." << endl;
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DELETE_OUT;
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PIN_ExitProcess(1);
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}
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*out << "FXRSTOR of size " << size << endl;
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}
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/* =====================================================================
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* Iterate over a trace and instrument its memory related instructions
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* ===================================================================== */
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VOID Trace(TRACE trace, VOID *v)
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{
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for (BBL bbl = TRACE_BblHead(trace); BBL_Valid(bbl); bbl = BBL_Next(bbl))
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{
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for (INS ins = BBL_InsHead(bbl); INS_Valid(ins); ins = INS_Next(ins))
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{
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OPCODE oc = INS_Opcode(ins);
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if (INS_IsMemoryWrite(ins) &&
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(XED_ICLASS_FXSAVE == oc || XED_ICLASS_FXSAVE64 == oc))
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{
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INS_InsertCall(ins, IPOINT_BEFORE, AFUNPTR(MemOpAnalysisFXSAVE),
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IARG_MEMORYWRITE_SIZE, IARG_END);
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}
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if (INS_IsMemoryRead(ins) &&
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(XED_ICLASS_FXRSTOR == oc || XED_ICLASS_FXRSTOR64 == oc))
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{
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INS_InsertCall(ins, IPOINT_BEFORE, AFUNPTR(MemOpAnalysisFXRSTOR),
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IARG_MEMORYREAD_SIZE, IARG_END);
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}
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}
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}
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}
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/* =====================================================================
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* Entry point for the tool
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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))
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{
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return Usage();
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}
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// Initialize the output stream.
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const string fileName = KnobOutputFile.Value();
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out = (fileName.empty()) ? &cerr : new ofstream(fileName.c_str());
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if (NULL == out || out->fail())
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{
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cerr << "TOOL ERROR: Unable to open " << fileName << " for writing." << endl;
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return 1;
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}
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TRACE_AddInstrumentFunction(Trace, 0);
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// Never returns
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PIN_StartProgram();
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return 1;
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}
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/* ===================================================================== */
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/* eof */
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/* ===================================================================== */
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