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102 lines
2.9 KiB
102 lines
2.9 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 <stdlib.h>
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#include <iostream>
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#include "pin.H"
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using std::endl;
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#if 0
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#define DBG_PRINT(a) (a)
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#else
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#define DBG_PRINT(a)
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#endif
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// The tool assumes single-threaded application.
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// This may not be the case on Windows 10.
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// We arbitrary choose single thread to profile.
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THREADID myThread = INVALID_THREADID;
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ADDRINT IfMyThread(THREADID threadId)
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{
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// Profile only single thread at any time
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return threadId == myThread;
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}
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VOID ThreadStart(THREADID tid, CONTEXT *ctxt, INT32 flags, VOID *v)
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{
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// Determine single thread to profile.
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if (myThread == INVALID_THREADID) myThread = tid;
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}
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UINT64 count_ins = 0;
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UINT64 count_bbl_ins = 0;
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VOID docount_ins(void * pc)
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{
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count_ins++;
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DBG_PRINT(printf("Anal: docount_ins: %lld at pc %p\n", count_ins, pc));
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}
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VOID docount_bbl_ins(void * pc, INT32 icount)
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{
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count_bbl_ins += icount;
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DBG_PRINT(printf("Anal: docount_bbl_ins(%d): %lld at pc %p\n", icount, count_bbl_ins, pc));
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if (count_ins != count_bbl_ins)
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{
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std::cerr << "mismatch: count_ins " << count_ins << " != count_bbl_ins "
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<< count_bbl_ins << " at pc " << pc << endl;
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exit(1);
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}
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}
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VOID Trace(TRACE trace, VOID *v)
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{
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for (BBL bbl = TRACE_BblHead(trace); BBL_Valid(bbl); bbl = BBL_Next(bbl))
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{
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DBG_PRINT(printf("Inst: Sequence address %p\n",(CHAR*)(INS_Address(BBL_InsHead(bbl)))));
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for (INS ins = BBL_InsHead(bbl); INS_Valid(ins); ins = INS_Next(ins))
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{
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DBG_PRINT(printf("Inst: %p\n",(CHAR*)(INS_Address(ins))));
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INS_InsertIfCall(ins, IPOINT_BEFORE, AFUNPTR(IfMyThread), IARG_THREAD_ID, IARG_END);
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INS_InsertThenCall(ins, IPOINT_BEFORE, AFUNPTR(docount_ins), IARG_INST_PTR, IARG_END);
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}
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INT32 icount = BBL_NumIns(bbl);
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DBG_PRINT(printf("Inst: -> control flow change (bbl size %d)\n", icount));
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INS ins = BBL_InsTail(bbl);
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INS_InsertIfCall(ins, IPOINT_BEFORE, AFUNPTR(IfMyThread), IARG_THREAD_ID, IARG_END);
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INS_InsertThenCall(ins, IPOINT_BEFORE, AFUNPTR(docount_bbl_ins), IARG_INST_PTR, IARG_UINT32, icount, IARG_END);
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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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std::cerr << "Count (ins) " << count_ins << ", (bbl_ins) " << count_bbl_ins << endl;
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}
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int main(INT32 argc, CHAR **argv)
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{
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PIN_Init(argc, argv);
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TRACE_AddInstrumentFunction(Trace, 0);
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// Add callbacks
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PIN_AddThreadStartFunction(ThreadStart, 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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