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95 lines
2.6 KiB
95 lines
2.6 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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/*! @file
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Replace an original function with a custom function defined in the tool. The
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new function can have either the same or different signature from that of its
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original function.
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*/
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/* ===================================================================== */
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#include "pin.H"
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#include <iostream>
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#include "tool_macros.h"
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using std::dec;
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using std::hex;
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using std::cout;
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using std::endl;
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/* ===================================================================== */
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static void (*pf_bar)();
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/* ===================================================================== */
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VOID Boo( CONTEXT * ctxt, AFUNPTR pf_Blue )
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{
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ADDRINT sp = PIN_GetContextReg( ctxt, REG_STACK_PTR );
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ADDRINT pc = PIN_GetContextReg( ctxt, REG_INST_PTR );
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cout << "Context SP = " << hex << sp << " Context PC = " << pc << dec << endl;
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pf_Blue();
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}
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/* ===================================================================== */
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VOID ImageLoad(IMG img, VOID *v)
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{
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cout << IMG_Name(img) << endl;
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PROTO proto = PROTO_Allocate( PIN_PARG(void), CALLINGSTD_DEFAULT,
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"Bar", PIN_PARG_END() );
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VOID * pf_Blue=0x0;
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RTN rtn1 = RTN_FindByName(img, C_MANGLE("Blue"));
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if (RTN_Valid(rtn1))
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pf_Blue = reinterpret_cast<VOID *>(RTN_Address(rtn1));
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RTN rtn = RTN_FindByName(img, C_MANGLE("Bar"));
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if (RTN_Valid(rtn) && pf_Blue != 0x0 )
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{
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cout << "Replacing " << RTN_Name(rtn) << " in " << IMG_Name(img) << endl;
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pf_bar = (void (*)())RTN_ReplaceSignatureProbed(
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rtn, AFUNPTR(Boo),
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IARG_PROTOTYPE, proto,
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IARG_CONTEXT,
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IARG_PTR, pf_Blue,
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IARG_END);
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}
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PROTO_Free( proto );
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}
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/* ===================================================================== */
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int main(INT32 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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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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/* eof */
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/* ===================================================================== */
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