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93 lines
2.4 KiB
93 lines
2.4 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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* This is a test for correct functionality of multiple instrumentations at
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* a single instrumentation point.
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*/
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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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FILE * trace;
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const INT32 N = 100000;
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const INT32 M = 50000;
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const INT32 K = 1000;
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static UINT32 syscallCount = 0;
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INT32 icount = K;
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ADDRINT CountDown()
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{
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--icount;
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return (icount==0);
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}
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// The IP of the current instruction will be printed and
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// the icount will be reset to a random number between N and N+M.
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VOID PrintIp(VOID *ip)
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{
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// Prepare for next period
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icount = N + rand() % M; // random number from N to N+M
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}
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// Print the return value of the system call
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VOID SysAfter(ADDRINT ip)
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{
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syscallCount++;
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}
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// Pin calls this function every time a new instruction is encountered
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VOID Instruction(INS ins, VOID *v)
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{
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if (INS_IsSyscall(ins) && INS_IsValidForIpointAfter(ins))
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{
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// CountDown() is called for every instruction executed
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INS_InsertIfCall(ins, IPOINT_AFTER, (AFUNPTR)CountDown, IARG_END);
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// PrintIp() is called only when the last CountDown() returns a non-zero value.
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INS_InsertThenCall(ins, IPOINT_AFTER, (AFUNPTR)PrintIp, IARG_INST_PTR, IARG_END);
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// return value only available after
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INS_InsertCall(ins, IPOINT_AFTER, AFUNPTR(SysAfter),
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IARG_INST_PTR,
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IARG_END);
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}
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}
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// This function is called when the application exits
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VOID Fini(INT32 code, VOID *v)
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{
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ASSERTX(syscallCount > 0);
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}
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// argc, argv are the entire command line, including pin -t <toolname> -- ...
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int main(int argc, char * argv[])
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{
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// Initialize pin
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PIN_Init(argc, argv);
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// Register Instruction to be called to instrument instructions
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INS_AddInstrumentFunction(Instruction, 0);
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// Register Fini to be called when the application exits
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PIN_AddFiniFunction(Fini, 0);
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// Start the program, never returns
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PIN_StartProgram();
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return 0;
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}
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