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104 lines
3.1 KiB
104 lines
3.1 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 file contains an ISA-portable PIN tool for tracing memory accesses.
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*/
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#include <stdio.h>
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#include "pin.H"
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FILE * trace;
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// Print a memory read record
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VOID RecordMemRead(VOID * ip, VOID * addr)
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{
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fprintf(trace,"%p: R %p\n", ip, addr);
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}
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// Print a memory write record
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VOID RecordMemWrite(VOID * ip, VOID * addr)
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{
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fprintf(trace,"%p: W %p\n", ip, addr);
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}
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// Is called for every instruction and instruments reads and writes
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VOID Instruction(INS ins, VOID *v)
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{
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// Instruments memory accesses using a predicated call, i.e.
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// the instrumentation is called iff the instruction will actually be executed.
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//
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// On the IA-32 and Intel(R) 64 architectures conditional moves and REP
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// prefixed instructions appear as predicated instructions in Pin.
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UINT32 memOperands = INS_MemoryOperandCount(ins);
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// Iterate over each memory operand of the instruction.
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for (UINT32 memOp = 0; memOp < memOperands; memOp++)
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{
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if (INS_MemoryOperandIsRead(ins, memOp))
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{
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INS_InsertPredicatedCall(
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ins, IPOINT_BEFORE, (AFUNPTR)RecordMemRead,
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IARG_INST_PTR,
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IARG_MEMORYOP_EA, memOp,
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IARG_END);
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}
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// Note that in some architectures a single memory operand can be
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// both read and written (for instance incl (%eax) on IA-32)
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// In that case we instrument it once for read and once for write.
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if (INS_MemoryOperandIsWritten(ins, memOp))
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{
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INS_InsertPredicatedCall(
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ins, IPOINT_BEFORE, (AFUNPTR)RecordMemWrite,
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IARG_INST_PTR,
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IARG_MEMORYOP_EA, memOp,
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IARG_END);
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}
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}
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}
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VOID Fini(INT32 code, VOID *v)
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{
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fprintf(trace, "#eof\n");
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fclose(trace);
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}
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/* ===================================================================== */
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/* Print Help Message */
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/* ===================================================================== */
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INT32 Usage()
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{
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PIN_ERROR( "This Pintool prints a trace of memory addresses\n"
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+ KNOB_BASE::StringKnobSummary() + "\n");
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return -1;
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}
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/* ===================================================================== */
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/* Main */
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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)) return Usage();
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trace = fopen("pinatrace.out", "w");
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INS_AddInstrumentFunction(Instruction, 0);
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PIN_AddFiniFunction(Fini, 0);
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// Never returns
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PIN_StartProgram();
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return 0;
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}
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