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126 lines
3.5 KiB
126 lines
3.5 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 "pin.H"
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#include <iostream>
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namespace WIND
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{
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#include <windows.h>
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}
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using std::endl;
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using std::cout;
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using std::string;
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using std::cerr;
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using std::flush;
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/* ===================================================================== */
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/* Commandline Switches */
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/* ===================================================================== */
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/* ===================================================================== */
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/* Global variables and declarations */
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/* ===================================================================== */
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// Number of application threads to validate.
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// This number corresponds to NTHREADS in w_app3 application.
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#define NTHREADS 5
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struct {
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THREADID id; // Thread id
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UINT32 ncalls; // Number of DoLoop() calls in this thread
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} tlist[NTHREADS]; // Global object. Zero-initialized.
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// Min positive number of DoLoop() calls in specific thread to qualify for pass.
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// Arbitrary number, enough for decisive validation.
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#define PASS_COUNT 10
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typedef int (__cdecl * DO_LOOP_TYPE)();
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/* ===================================================================== */
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// This replacement function starts to return 0 once all validated threads
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// called it at least PASS_COUNT times.
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// Return value 0 causes calling threads to finish gracefully.
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int rep_DoLoop()
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{
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static UINT32 passedThreads = 0;
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THREADID tid = PIN_ThreadId();
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UINT32 i;
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PIN_LockClient();
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for (i = 0; i < NTHREADS; ++i)
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{
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if (tlist[i].ncalls == 0)
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{
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// This thread calls DoLoop() first time. Register it.
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tlist[i].id = tid;
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}
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else if (tlist[i].id != tid)
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{
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continue;
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}
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if (++tlist[i].ncalls == PASS_COUNT)
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{
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// This thread achieved pass criteria.
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++passedThreads;
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}
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break;
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}
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PIN_UnlockClient();
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ASSERTX(i < NTHREADS); // Number of threads that ever called DoLoop doesn't exceed NTHREADS.
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return passedThreads < NTHREADS;
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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 << endl << IMG_Name(img);
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if ( ! IMG_IsMainExecutable(img) )
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{
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return;
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}
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const string sFuncName("DoLoop");
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for (SYM sym = IMG_RegsymHead(img); SYM_Valid(sym); sym = SYM_Next(sym))
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{
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string undFuncName = PIN_UndecorateSymbolName(SYM_Name(sym), UNDECORATION_NAME_ONLY);
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if (undFuncName == sFuncName)
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{
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RTN rtn = RTN_FindByAddress(IMG_LowAddress(img) + SYM_Value(sym));
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if (RTN_Valid(rtn))
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{
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// Even though this is not an error - print to cerr (in order to see it on the screen)
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cerr << "Replacing DoLoop() in " << IMG_Name(img) << endl;
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RTN_Replace(rtn, AFUNPTR(rep_DoLoop));
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}
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}
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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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std::cerr << "Application is starting" << endl << flush;
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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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