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82 lines
1.9 KiB
82 lines
1.9 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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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "pin.H"
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ADDRINT newTLS = 0;
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ADDRINT newTLSSize = 0x80;
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void AllocateNewTLS()
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{
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newTLS = (ADDRINT)malloc(newTLSSize);
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}
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ADDRINT ProcessAddress(ADDRINT baseAddr, ADDRINT fullAddr, VOID *ip)
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{
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ADDRINT displacement = fullAddr - baseAddr;
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return newTLS + displacement;
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}
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void Instruction(INS ins, VOID *v)
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{
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RTN rtn = INS_Rtn(ins);
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if (RTN_Valid(rtn) && ((RTN_Name(rtn) == "SegAccessRtn") || (RTN_Name(rtn) == "SegAccessStrRtn")))
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{
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REG segReg = INS_SegmentRegPrefix(ins);
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if ((segReg != REG_SEG_GS) && (segReg != REG_SEG_FS))
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return;
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REG baseReg = (segReg == REG_SEG_GS)? REG_SEG_GS_BASE : REG_SEG_FS_BASE;
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for (UINT32 memopIdx=0; memopIdx<INS_MemoryOperandCount(ins); memopIdx++)
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{
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REG scratchReg = REG(int(REG_INST_G0)+memopIdx);
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INS_RewriteMemoryOperand(ins, memopIdx, scratchReg);
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INS_InsertCall(ins, IPOINT_BEFORE,
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AFUNPTR(ProcessAddress),
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IARG_REG_VALUE,
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baseReg,
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IARG_MEMORYOP_EA, memopIdx,
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IARG_INST_PTR,
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IARG_RETURN_REGS, scratchReg, IARG_END);
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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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PIN_Init(argc, argv);
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INS_AddInstrumentFunction(Instruction, 0);
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AllocateNewTLS();
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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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