You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
2.5 KiB
99 lines
2.5 KiB
/*
|
|
* Copyright 2002-2019 Intel Corporation.
|
|
*
|
|
* This software is provided to you as Sample Source Code as defined in the accompanying
|
|
* End User License Agreement for the Intel(R) Software Development Products ("Agreement")
|
|
* section 1.L.
|
|
*
|
|
* This software and the related documents are provided as is, with no express or implied
|
|
* warranties, other than those that are expressly stated in the License.
|
|
*/
|
|
|
|
/*
|
|
* This tool demonstrates a technique of changing instrumentation
|
|
* phases in a tool by sending the process a Unix signal. This tool
|
|
* hard-codes the SIGUSR2 signal. In reality, you must choose a signal
|
|
* that the application is not also using.
|
|
*/
|
|
|
|
#include <signal.h>
|
|
#include <iostream>
|
|
#include "pin.H"
|
|
|
|
#if defined(TARGET_MAC)
|
|
#define NAME(S) "_" S
|
|
#else
|
|
#define NAME(S) S
|
|
#endif
|
|
|
|
BOOL SignalHandler(THREADID, INT32, CONTEXT *, BOOL, const EXCEPTION_INFO *, void *);
|
|
VOID Image(IMG, VOID *);
|
|
VOID Trace(TRACE, VOID *);
|
|
VOID CheckPC(ADDRINT);
|
|
|
|
|
|
BOOL EnableInstrumentation = FALSE;
|
|
ADDRINT AddrNotTraced = 0;
|
|
ADDRINT AddrIsTraced = 0;
|
|
|
|
|
|
int main(int argc, char * argv[])
|
|
{
|
|
PIN_Init(argc, argv);
|
|
PIN_InitSymbols();
|
|
|
|
PIN_InterceptSignal(SIGUSR2, SignalHandler, 0);
|
|
PIN_UnblockSignal(SIGUSR2, TRUE);
|
|
IMG_AddInstrumentFunction(Image, 0);
|
|
TRACE_AddInstrumentFunction(Trace, 0);
|
|
|
|
PIN_StartProgram();
|
|
return 0;
|
|
}
|
|
|
|
|
|
BOOL SignalHandler(THREADID, INT32, CONTEXT *, BOOL, const EXCEPTION_INFO *, void *)
|
|
{
|
|
// If we receive the signal, enable instrumentation. We call
|
|
// PIN_RemoveInstrumentation() to remove any existing instrumentation
|
|
// from Pin's code cache.
|
|
//
|
|
EnableInstrumentation = TRUE;
|
|
PIN_RemoveInstrumentation();
|
|
|
|
// Tell Pin NOT to pass the signal to the application.
|
|
//
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
VOID Image(IMG img, VOID *)
|
|
{
|
|
RTN rtn = RTN_FindByName(img, NAME("NotTraced"));
|
|
if (RTN_Valid(rtn))
|
|
AddrNotTraced = RTN_Address(rtn);
|
|
|
|
rtn = RTN_FindByName(img, NAME("IsTraced"));
|
|
if (RTN_Valid(rtn))
|
|
AddrIsTraced = RTN_Address(rtn);
|
|
}
|
|
|
|
|
|
VOID Trace(TRACE trace, VOID *)
|
|
{
|
|
if (!EnableInstrumentation)
|
|
return;
|
|
|
|
for (BBL bbl = TRACE_BblHead(trace); BBL_Valid(bbl); bbl = BBL_Next(bbl))
|
|
BBL_InsertCall(bbl, IPOINT_BEFORE, AFUNPTR(CheckPC), IARG_INST_PTR, IARG_END);
|
|
}
|
|
|
|
|
|
VOID CheckPC(ADDRINT pc)
|
|
{
|
|
if (pc == AddrNotTraced)
|
|
std::cout << "Traced NotTraced()" << std::endl;
|
|
if (pc == AddrIsTraced)
|
|
std::cout << "Traced IsTraced()" << std::endl;
|
|
}
|