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.
110 lines
2.8 KiB
110 lines
2.8 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.
|
|
*/
|
|
|
|
#include "pin.H"
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <iostream>
|
|
#include <fstream>
|
|
using std::ios_base;
|
|
using std::ofstream;
|
|
using std::cerr;
|
|
using std::string;
|
|
using std::endl;
|
|
|
|
/* ===================================================================== */
|
|
|
|
KNOB<string> KnobOutputFile(KNOB_MODE_WRITEONCE, "pintool",
|
|
"o", "forktool.out", "specify file name");
|
|
|
|
ofstream Out;
|
|
/* ===================================================================== */
|
|
|
|
INT32 Usage()
|
|
{
|
|
cerr <<
|
|
"This pin tool tests probe replacement.\n"
|
|
"\n";
|
|
cerr << KNOB_BASE::StringKnobSummary();
|
|
cerr << endl;
|
|
return -1;
|
|
}
|
|
|
|
pid_t activeProcessId = 0;
|
|
pid_t parentPid = 0;
|
|
|
|
void BeforeFork(UINT32 childPid, void *data)
|
|
{
|
|
parentPid = PIN_GetPid();
|
|
Out << "TOOL: Before fork.." << endl;
|
|
}
|
|
|
|
void AfterForkInParent(UINT32 childPid, void *data)
|
|
{
|
|
activeProcessId = PIN_GetPid();
|
|
Out << "TOOL: After fork in parent." << endl;
|
|
}
|
|
|
|
void AfterForkInChild(UINT32 childPid, void *data)
|
|
{
|
|
activeProcessId = PIN_GetPid();
|
|
Out << "TOOL: After fork in child." << endl;
|
|
}
|
|
|
|
BOOL FollowChild(CHILD_PROCESS childProcess, VOID * userData)
|
|
{
|
|
if (PIN_GetPid() == parentPid)
|
|
{
|
|
Out << "TOOL: At follow child callback in parent process." << endl;
|
|
}
|
|
else
|
|
{
|
|
Out << "TOOL: At follow child callback in child process." << endl;
|
|
}
|
|
// Pin replaces vfork with fork. In this case the global variable
|
|
// activeProcessId will receive the right value
|
|
if (activeProcessId != PIN_GetPid())
|
|
{
|
|
fprintf(stderr, "vfork works incorrectly with -follow_execv\n");
|
|
exit(-1);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
int main(int argc, CHAR *argv[])
|
|
{
|
|
PIN_InitSymbols();
|
|
|
|
if( PIN_Init(argc,argv) )
|
|
{
|
|
return Usage();
|
|
}
|
|
|
|
string outFileName = KnobOutputFile.Value() + string("_") + decstr(PIN_GetPid());
|
|
Out.open(outFileName.c_str(), ios_base::app);
|
|
if (!Out.is_open())
|
|
{
|
|
cerr << "Can't open file " << outFileName << endl;
|
|
exit(-1);
|
|
}
|
|
cerr << "Open file " << outFileName << endl;
|
|
|
|
PIN_AddForkFunctionProbed(FPOINT_BEFORE, BeforeFork, 0);
|
|
PIN_AddForkFunctionProbed(FPOINT_AFTER_IN_CHILD, AfterForkInChild, 0);
|
|
PIN_AddForkFunctionProbed(FPOINT_AFTER_IN_PARENT, AfterForkInParent, 0);
|
|
PIN_AddFollowChildProcessFunction(FollowChild, 0);
|
|
|
|
PIN_StartProgramProbed();
|
|
|
|
return 0;
|
|
}
|