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109 lines
2.8 KiB
109 lines
2.8 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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Replaces pthread_spin_lock(). Linux only, of course.
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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 <stdlib.h>
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#include "tool_macros.h"
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using std::cerr;
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using std::endl;
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using std::cout;
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/* ===================================================================== */
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/* Global Variables */
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/* ===================================================================== */
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typedef void (*FUNCPTR)(int status);
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static void (*pf_exit)(int status);
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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 replaces exit() function in libc\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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void MyExit(int arg)
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{
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cout << "MyExit: calling original exit() from libc" << endl;
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return (pf_exit)(arg);
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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 rtn = RTN_FindByName(img, C_MANGLE("exit"));
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if ( RTN_Valid(rtn))
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{
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//fprintf(stderr, "Attach to prs %d\n", PIN_GetPid());
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//getchar();
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if (RTN_IsSafeForProbedReplacementEx(rtn, PROBE_MODE_ALLOW_RELOCATION))
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{
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// Save the function pointer that points to the new location of
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// the entry point of the original exit in this image.
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//
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pf_exit = (FUNCPTR)RTN_ReplaceProbedEx( rtn, PROBE_MODE_ALLOW_RELOCATION, AFUNPTR(MyExit));
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cout << "ImageLoad: Replaced exit() in: " << IMG_Name(img) << endl;
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}
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else
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{
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cout << "ImageLoad: Pin can't replace exit() in: " << IMG_Name(img) << endl;
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exit(-1);
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}
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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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return Usage();
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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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