static BOOL Intercept(THREADID tid, DEBUGGING_EVENT eventType, CONTEXT *ctxt, VOID *)
{
if (eventType == DEBUGGING_EVENT_BREAKPOINT)
{
// When the child thread reaches the breakpoint in Breakpoint(), wait for the main
// thread to reach the One() function. If the main thread is not there yet, squash the
// breakpoint and move the PC back to the start of the Breakpoint() function. This will
// delay a while and then re-trigger the breakpoint.
//
ADDRINT pc = PIN_GetContextReg(ctxt, REG_INST_PTR);
if (pc == BreakpointLocation && !AllowBreakpoint)
{
PIN_SetContextReg(ctxt, REG_INST_PTR, BreakpointFunction);
PIN_GetLock(&Lock, 1);
std::cout << "Squashing breakpoint at 0x" << std::hex << pc << " on thread " << std::dec << tid << std::endl;
PIN_ReleaseLock(&Lock);
return FALSE;
}
PIN_GetLock(&Lock, 1);
std::cout << "Stopping at breakpoint at 0x" << std::hex << pc << " on thread " << std::dec << tid << std::endl;
PIN_ReleaseLock(&Lock);
return TRUE;
}
if (eventType == DEBUGGING_EVENT_ASYNC_BREAK)
{
// When the child thread triggers the breakpoint, we should be at the One() function.
// Change the PC to the Two() function, which is the point of this test. We want to
// make sure Pin properly handles the change of PC in this case.
//
ADDRINT pc = PIN_GetContextReg(ctxt, REG_INST_PTR);
if (pc == OneFunction)
{
PIN_SetContextReg(ctxt, REG_INST_PTR, TwoFunction);
PIN_GetLock(&Lock, 1);
std::cout << "Changing ASYNC BREAK PC to Two() on thread " << std::dec << tid << std::endl;
PIN_ReleaseLock(&Lock);
return TRUE;
}
// If the PC is not at the One() function, the child thread has probably hit some breakpoint
// other than the one at Breakpoint(). (E.g. an internal breakpoint set by GDB.) Don't
// change the PC in such a case.
//
PIN_GetLock(&Lock, 1);
std::cout << "ASYNC_BREAK at 0x" << std::hex << pc << " on thread " << std::dec << tid << std::endl;
PIN_ReleaseLock(&Lock);
return TRUE;
}
PIN_GetLock(&Lock, 1);
std::cout << "FAILURE: Unexpected debugging event type" << std::endl;
PIN_ReleaseLock(&Lock);
std::exit(1);
}
/*!
* Print out analysis results.
* This function is called when the application exits.
* @param[in] code exit code of the application
* @param[in] v value specified by the tool in the
* PIN_AddFiniFunction function call
*/
VOID Fini(INT32 code, VOID *v)
{
PIN_GetLock(&fileLock, 1);
fclose(outfile);
printf("outfile closed\n");
PIN_ReleaseLock(&fileLock);
}
// Note that opening a file in a callback is only supported on Linux systems.
// See buffer-win.cpp for how to work around this issue on Windows.
//
// This routine is executed every time a thread is created.
VOID ThreadStart(THREADID threadid, CONTEXT *ctxt, INT32 flags, VOID *v)
{
PIN_GetLock(&lock, threadid+1);
fprintf(out, "thread begin %d\n",threadid);
fflush(out);
PIN_ReleaseLock(&lock);
}
static void DoTestLockIntegrity(THREADID tid, THREAD_INFO *info, UINT32 *done)
{
// This test checks to see if two threads can be in the PIN_LOCK mutex
// simultaneously.
PIN_GetLock(&Lock, tid);
THREADID owner = HasLock;
HasLock = tid;
if (owner != INVALID_THREADID)
{
std::cout << "Two theads in lock simultaneously: " << std::dec << tid <<
" and " << owner << std::endl;
PIN_ExitProcess(1);
}
ATOMIC::OPS::Delay(DELAY_COUNT);
HasLock = INVALID_THREADID;
THREADID ret = PIN_ReleaseLock(&Lock);
if (ret != tid)
{
std::cout << "PIN_ReleaseLock returned unexpected value " << std::dec << ret <<
" (expected " << tid << ")" << std::endl;
PIN_ExitProcess(1);
}
CheckIfDone(info, done);
}
VOID Error(std::string where, THREADID tid, UINT32 r, ADDRINT expect, ADDRINT val)
{
PIN_GetLock(&Lock, 1);
Out << "Mismatch " << where << ": tid=" << std::dec << tid << " (G" << r << ")" <<
", Expect " << std::hex << expect << ", Got " << std::hex << val << std::endl;
PIN_ReleaseLock(&Lock);
}
// This routine is executed every time a thread is destroyed.
VOID ThreadFini(THREADID threadid, const CONTEXT *ctxt, INT32 code, VOID *v)
{
PIN_GetLock(&lock, threadid+1);
fprintf(out, "thread end %d code %d\n",threadid, code);
fflush(out);
PIN_ReleaseLock(&lock);
}
// This routine is executed each time malloc is called.
VOID BeforeMalloc( int size, THREADID threadid )
{
PIN_GetLock(&lock, threadid+1);
fprintf(out, "thread %d entered malloc(%d)\n", threadid, size);
fflush(out);
PIN_ReleaseLock(&lock);
}
static bool address_mapped(void *addr) {
int i;
PIN_GetLock(&globalLock, 1);
i = _find_overlap(addr, addr);
PIN_ReleaseLock(&globalLock);
return (i != -1);
}
VOID ThreadStart(THREADID threadid, CONTEXT *ctxt, INT32 flags, VOID *v)
{
PIN_GetLock(&lock, threadid+1);
numThreads++;
PIN_ReleaseLock(&lock);
ASSERT(numThreads <= MaxNumThreads, "Maximum number of threads exceeded\n");
}
static VOID GetToolLock(THREADID tid)
{
PIN_GetLock(&ToolLock, tid+1);
// The loop opens the timing hole, making the deadlock more likely.
for(int i=0;i<10000000;i++);
PIN_ReleaseLock(&ToolLock);
}
static void DoTestLockStress(THREADID tid, THREAD_INFO *info, UINT32 *done)
{
// This test just tries to acquire and release PIN_LOCK as fast as possible
// to see if we can provoke a deadlock due to missing a wakeup.
PIN_GetLock(&Lock, tid);
PIN_ReleaseLock(&Lock);
CheckIfDone(info, done);
}
VOID ThreadFini(THREADID tid, const CONTEXT *ctxt, INT32 code, VOID *v)
{
// When the thread exits, accumulate the thread's dynamic instruction
// count into the total.
//
PIN_GetLock(&Lock, tid+1);
TotalCount += PIN_GetContextReg(ctxt, ScratchReg);
PIN_ReleaseLock(&Lock);
}
// Print a memory write record
VOID RecordMemWrite(VOID * ip, VOID * addr, THREADID threadid)
{
PIN_GetLock(&lock, 0);
bool dl1hit = dl1cache->AccessSingleLine((ADDRINT)addr, CACHE_BASE::ACCESS_TYPE_STORE);
bool dl3hit = dl3cache->AccessSingleLine((ADDRINT)addr, CACHE_BASE::ACCESS_TYPE_STORE);
PIN_ReleaseLock(&lock);
thread_data *td = get_tls(threadid);
td->record_mem_write(ip, addr, dl1hit || dl3hit);
}
static void UseLocksScheduler()
{
UseLockSchedulerCount++;
// The scheduler thread executes this after it has lowered the priority of
// the worker thread. The hope is that we will try to acquire the lock while
// the worker already has it.
//
PIN_GetLock(&Lock, 2);
PIN_ReleaseLock(&Lock);
}
VOID ThreadStart(THREADID threadid, CONTEXT *ctxt, INT32 flags, VOID *v)
{
if(threadid!=0)return;
PIN_GetLock(&lock, threadid+1);
numThreads++;
PIN_ReleaseLock(&lock);
tdata = new thread_data_t (threadid);
PIN_SetThreadData(tls_key, tdata, threadid);
}
VOID Call(THREADID tid, ADDRINT sp, ADDRINT target, ADDRINT eip, ADDRINT nxtIns )
{
thread_data_t *tdata = get_tls(tid);
PIN_GetLock(&lock, tid+1);
tdata->data_sp.push_front(sp); // Pushing SP register
tdata->data_ret.push_front(nxtIns); // Pushing return address for the call ins
tdata->tuplist.push_front(boost::tuple<ADDRINT, ADDRINT>(eip, nxtIns));
depth++;
PIN_ReleaseLock(&lock);
}
static void UseLocksWorker()
{
UseLockWorkerCount++;
// The worker thread executes this in a loop. We do sched_yield() to
// encourage the kernel to switch the thread off the CPU while it holds
// the lock. This would be possible even without the sched_yield(), though.
//
PIN_GetLock(&Lock, 1);
sched_yield();
PIN_ReleaseLock(&Lock);
}
VOID ThreadStart(THREADID threadid, CONTEXT *ctxt, INT32 flags, VOID *v)
{
PIN_GetLock(&lock, threadid+1);
numThreads++;
PIN_ReleaseLock(&lock);
thread_data_t* tdata = new thread_data_t;
clock_gettime(CLOCK_MONOTONIC, &tdata->tstart);
PIN_SetThreadData(tls_key, tdata, threadid);
}
VOID ThreadStart(THREADID threadid, CONTEXT *ctxt, INT32 flags, VOID *v)
{
PIN_GetLock(&lock, 0);
thread_data *td = new thread_data;
PIN_SetThreadData(tls_key, td, threadid);
all_thread_data.push_back(td);
PIN_ReleaseLock(&lock);
}
VOID Call(THREADID tid, ADDRINT sp, ADDRINT target, ADDRINT eip, ADDRINT nxtIns )
{
thread_data_t *tdata = get_tls(tid);
PIN_GetLock(&lock, tid+1);
tdata->data_sp.push_front(sp); // Pushing SP register
tdata->data_ret.push_front(nxtIns); // Pushing return address for the call ins
tdata->tuplist.push_front(boost::tuple<ADDRINT, ADDRINT>(eip, nxtIns));
depth++;
PIN_ReleaseLock(&lock);
if ( eip == 12 )
// cout << hex << (nxtIns - eip ) << " : " << nxtIns << " : " << eip << endl;
cout << hex << tdata->tuplist.begin()->get<0>() << " " <<tdata->tuplist.begin()->get<1>() << endl;
}
static VOID AtOne()
{
if (!AllowBreakpoint)
{
PIN_GetLock(&Lock, 1);
std::cout << "Breakpoint is allowed" << std::endl;
PIN_ReleaseLock(&Lock);
}
// When the main thread reaches the One() function, allow the child thread to trigger
// the breakpoint. The main thread will continue executing this instruction in a loop
// until we intercept the DEBUGGING_EVENT_ASYNC_BREAK event below.
//
AllowBreakpoint = TRUE;
}
VOID ThreadStart(THREADID threadid, CONTEXT *ctxt, INT32 flags, VOID *v)
{
PIN_InitLock(&lock);
PIN_GetLock(&lock, threadid+1);
numThreads++;
if (threadid > maxThreads)
maxThreads = threadid;
OS_THREAD_ID oid = PIN_GetTid();
OSTID_ITER iter = tidMap.find(oid);
if (iter == tidMap.end())
{
// new threads
numSysThreads++;
tidMap.insert(oid);
}
PIN_ReleaseLock(&lock);
}
/*!
* Called when a buffer fills up, or the thread exits, so we can process it or pass it off
* as we see fit.
* @param[in] id buffer handle
* @param[in] tid id of owning thread
* @param[in] ctxt application context when the buffer filled
* @param[in] buf actual pointer to buffer
* @param[in] numElements number of records
* @param[in] v callback value
* @return A pointer to the buffer to resume filling.
*/
VOID * BufferFull(BUFFER_ID bid, THREADID tid, const CONTEXT *ctxt, VOID *buf,
UINT64 numElements, VOID *v)
{
PIN_GetLock(&fileLock, 1);
ASSERTX(buf == PIN_GetThreadData(buf_key, tid));
struct MEMREF* reference=(struct MEMREF*)buf;
UINT64 i;
for(i=0; i<numElements; i++, reference++){
fprintf(outfile, "%lx %lx %u %u\n", (unsigned long)reference->pc, (unsigned long)reference->address,
reference->size, reference->load);
}
fflush(outfile);
PIN_ReleaseLock(&fileLock);
return buf;
}
/*!
* Called when a buffer fills up, or the thread exits, so we can process it or pass it off
* as we see fit.
* @param[in] id buffer handle
* @param[in] tid id of owning thread
* @param[in] ctxt application context when the buffer filled
* @param[in] buf actual pointer to buffer
* @param[in] numElements number of records
* @param[in] v callback value
* @return A pointer to the buffer to resume filling.
*/
VOID * BufferFull2(BUFFER_ID id, THREADID tid, const CONTEXT *ctxt, VOID *buf,
UINT64 numElements, VOID *v)
{
PIN_GetLock(&fileLock, 1);
struct MEMREF* reference=(struct MEMREF*)buf;
unsigned int i;
fprintf( outfile, "Dumping buffer 2 at address %lx\n", (unsigned long)buf);
for(i=0; i<numElements; i++, reference++){
fprintf(outfile, "%lx %lx %u %u\n", (unsigned long)reference->pc, (unsigned long)reference->address,
reference->size, reference->load);
}
fflush(outfile);
PIN_ReleaseLock(&fileLock);
return buf;
}
VOID ThreadStart(THREADID threadid, CONTEXT *ctxt, INT32 flags, VOID *v)
{
PIN_InitLock(&lock);
PIN_GetLock(&lock, threadid+1);
fprintf(trace, "thread begin %x %x\n",threadid, numThreads);
numThreads++;
if (threadid < MAX_THREADS)
{
#ifndef TARGET_LINUX
threadData[threadid].threadTeb = InitializeThreadData();
#endif
}
else
{
fprintf (trace, "ERROR - maximum #threads exceeded\n");
}
fflush(trace);
PIN_ReleaseLock(&lock);
}
VOID ThreadStart( THREADID tid, CONTEXT *ctxt, INT32 flags, VOID *v)
{
PIN_GetLock(&lock, tid+1);
tIds[numThreads] = tid;
stringstream fn;
if ( tid != numThreads ) {
cout << " TID NOT SAME AS NUMTHREADS " << tid << " " << numThreads << endl;
}
fn.str("");
fn << OUT_FILE << "_" << numThreads;
OutFile[numThreads].open(fn.str().c_str(), ios::out);
++numThreads;
PIN_ReleaseLock(&lock);
thread_data_t *tdata = new thread_data_t(numThreads-1);
PIN_SetThreadData(tls_key, tdata, tid);
}
VOID ThreadStart( THREADID tid, CONTEXT *ctxt, INT32 flags, VOID *v)
{
PIN_GetLock(&lock, tid+1);
tIds[numThreads] = tid;
stringstream fn;
/* If you ever see this then change the logic in code which uses tid to
index into open File streams to do File I/O */
if ( tid != numThreads ) {
cout << " TID NOT SAME AS NUMTHREADS " << tid << " " << numThreads << endl;
}
fn.str("");
fn << OUT_FILE << "_" << numThreads;
OutFile[numThreads].open(fn.str().c_str(), ios::out);
++numThreads;
PIN_ReleaseLock(&lock);
thread_data_t *tdata = new thread_data_t(numThreads-1);
PIN_SetThreadData(tls_key, tdata, tid);
}
VOID ThreadStart(THREADID threadid, CONTEXT *ctxt, INT32 flags, VOID *v)
{
PIN_GetLock(&lock, threadid+1);
fprintf(trace, "thread begin %x %x\n",threadid, numThreads);
numThreads++;
if (threadid < MAX_THREADS)
{
#ifdef TARGET_WINDOWS
threadData[threadid].threadTeb = InitializeThreadData();
if ((ADDRINT)PIN_GetContextReg( ctxt, TESTED_SEG_REG_BASE ) != InitializeThreadData())
{
fprintf (trace, "ERROR - Initial value of tested segment base does not match TEB\n");
hadError = TRUE;
}
#endif
}
else
{
fprintf (trace, "ERROR - maximum #threads exceeded\n");
}
fflush(trace);
PIN_ReleaseLock(&lock);
}
VOID ThreadFini(THREADID threadid, const CONTEXT *ctxt, INT32 code, VOID *v)
{
PIN_GetLock(&lock, PIN_GetTid());
threadEnded++;
PIN_ReleaseLock(&lock);
}
VOID ThreadStart(THREADID threadid, CONTEXT *ctxt, INT32 flags, VOID *v)
{
PIN_GetLock(&lock, PIN_GetTid());
threadCreated++;
PIN_ReleaseLock(&lock);
}
