def __init__(self):
self._statProcessTree = StatProcessTree()
self._unfinishedResult = {}
self._futexHolderPid = {}
self._futexWaiterPids = defaultdict(list)
self._pluginOptionDict = {}
self._outputFile = sys.stdout
def __init__(self):
self._statProcessTree = StatProcessTree()
self._lastSyscallStore = defaultdict(deque)
self._lastSyscallTime = {}
class StatLastSyscall(StatBase):
""" Find the last few unfinished syscall of process """
def __init__(self):
self._statProcessTree = StatProcessTree()
self._lastSyscallStore = defaultdict(deque)
self._lastSyscallTime = {}
def isOperational(self, straceOptions):
self._straceOptions = straceOptions
return True
def getSyscallHooks(self):
if self._straceOptions["havePid"]:
return self._statProcessTree.getSyscallHooks()
else:
return None
def getRawSyscallHooks(self):
return {"ALL": self.funcHandleALLSyscall}
def _reconstructStraceLine(self, result):
# recontruct the strace line
if self._straceOptions["haveTime"]:
syscallLine = result["startTime"].strftime("%H:%M:%S.%f") + " "
else:
syscallLine = ""
syscallLine += "{0} (".format(result["syscall"]) + ", ".join(
[str(a) for a in result["args"]])
if result["type"] == "unfinished":
syscallLine += " <unfinished ...>"
else:
syscallLine += ")"
# pad some space before return value if it is too short
# in order to match to original strace output
syscallLine = "{0:<39} = {1}".format(syscallLine, result["return"])
return syscallLine
def funcHandleALLSyscall(self, result):
if self._straceOptions["havePid"]:
pid = result["pid"]
else:
pid = 0
# store the last syscall time
if self._straceOptions["haveTime"]:
syscallTime = result["startTime"]
self._lastSyscallTime[pid] = syscallTime
self._latestTime = syscallTime
self._lastSyscallStore[pid].append(result)
if len(self._lastSyscallStore[pid]) > 3: # store last 3 syscalls
self._lastSyscallStore[pid].popleft()
def printOutput(self):
for pid, syscallList in self._lastSyscallStore.iteritems():
if self._straceOptions["haveTime"]:
waitTime = self._latestTime - self._lastSyscallTime[pid]
else:
waitTime = ""
# Ignore all the exited process
if "exit" not in syscallList[-1]["syscall"]:
#print pid, self._statProcessTree.getProcessExecName(pid), waitTime
#for syscallResult in syscallList:
# print " ", self._reconstructStraceLine(syscallResult)
print pid, waitTime, self._reconstructStraceLine(
syscallList[-1])
def __init__(self):
self._statProcessTree = StatProcessTree()
self._lastSyscallStore = defaultdict(deque)
self._lastSyscallTime = {}
class StatLastSyscall(StatBase):
""" Find the last few unfinished syscall of process """
def __init__(self):
self._statProcessTree = StatProcessTree()
self._lastSyscallStore = defaultdict(deque)
self._lastSyscallTime = {}
def isOperational(self, straceOptions):
self._straceOptions = straceOptions
return True
def getSyscallHooks(self):
if self._straceOptions["havePid"]:
return self._statProcessTree.getSyscallHooks()
else:
return None
def getRawSyscallHooks(self):
return {"ALL": self.funcHandleALLSyscall}
def _reconstructStraceLine(self, result):
# recontruct the strace line
if self._straceOptions["haveTime"]:
syscallLine = result["startTime"].strftime("%H:%M:%S.%f") + " "
else:
syscallLine = ""
syscallLine += "{0} (".format(result["syscall"]) + ", ".join([str(a) for a in result["args"]])
if result["type"] == "unfinished":
syscallLine += " <unfinished ...>"
else:
syscallLine += ")"
# pad some space before return value if it is too short
# in order to match to original strace output
syscallLine = "{0:<39} = {1}".format(syscallLine, result["return"])
return syscallLine
def funcHandleALLSyscall(self, result):
if self._straceOptions["havePid"]:
pid = result["pid"]
else:
pid = 0
# store the last syscall time
if self._straceOptions["haveTime"]:
syscallTime = result["startTime"]
self._lastSyscallTime[pid] = syscallTime
self._latestTime = syscallTime
self._lastSyscallStore[pid].append(result)
if len(self._lastSyscallStore[pid]) > 3: # store last 3 syscalls
self._lastSyscallStore[pid].popleft()
def printOutput(self):
for pid, syscallList in self._lastSyscallStore.iteritems():
if self._straceOptions["haveTime"]:
waitTime = self._latestTime - self._lastSyscallTime[pid]
else:
waitTime = ""
# Ignore all the exited process
if "exit" not in syscallList[-1]["syscall"]:
#print pid, self._statProcessTree.getProcessExecName(pid), waitTime
#for syscallResult in syscallList:
# print " ", self._reconstructStraceLine(syscallResult)
print pid, waitTime, self._reconstructStraceLine(syscallList[-1])
def __init__(self):
self._statProcessTree = StatProcessTree()
self._unfinishedResult = {}
self._futexHolderPid = {}
self._futexWaiterPids = defaultdict(list)
class StatFutex(StatBase):
""" Get futex related info """
def __init__(self):
self._statProcessTree = StatProcessTree()
self._unfinishedResult = {}
self._futexHolderPid = {}
self._futexWaiterPids = defaultdict(list)
def isOperational(self, straceOptions):
self._straceOptions = straceOptions
return True
def getSyscallHooks(self):
if self._straceOptions["havePid"]:
return self._statProcessTree.getSyscallHooks()
else:
return None
def getRawSyscallHooks(self):
if self._straceOptions["havePid"]:
return {"futex": self.funcHandleFutexSyscall}
return None
def funcHandleFutexSyscall(self, result):
#print result
pid = result["pid"]
syscallType = result["type"]
timeStr = result["startTime"].time()
if syscallType == "resumed":
# if this is a resume syscall, combine it with last unfinished syscall of this pid
lastResult = self._unfinishedResult[pid]
lastResult["return"] = result["return"]
lastResult["args"].append(result["args"])
lastResult["type"] = "completed"
result = lastResult
elif syscallType == "unfinished":
self._unfinishedResult[pid] = result
futexAddress = result["args"][0]
futexOp = result["args"][1]
if "FUTEX_WAIT" in futexOp:
if syscallType == "unfinished": # wait on a futex
# add myself in waiter list
self._futexWaiterPids[futexAddress].append(pid)
print "{0} pid:{1} wait futex:{2}, current holder:{3}, waiting list:{4}".format(
timeStr, pid, futexAddress,
self._futexHolderPid[futexAddress] if futexAddress in self._futexHolderPid else "Unknown",
self._futexWaiterPids[futexAddress])
else: # completed or resumed = being wake up or timeout
# remove myself from futexWaiterPids
if futexAddress in self._futexWaiterPids:
if pid in self._futexWaiterPids[futexAddress]:
self._futexWaiterPids[futexAddress].remove(pid)
returnValue = result["return"]
if int(returnValue) == 0: # being wake up
self._futexHolderPid[futexAddress] = pid # I am the holder now
print "{0} pid:{1} hold futex:{2}, waiting list:{3}".format(
timeStr, pid, futexAddress,
self._futexWaiterPids[futexAddress])
else: # timeout
print "{0} pid:{1} timeout futex:{2}".format(timeStr, pid, futexAddress)
#TODO: many different cases in man page
if "FUTEX_WAKE" in futexOp:
self._futexHolderPid[futexAddress] = None
print "{0} pid:{1} release futex:{2}, waiting list:{3}".format(
timeStr, pid, futexAddress,
self._futexWaiterPids[futexAddress])
def printOutput(self):
futexAddressSet = set(self._futexHolderPid.keys() + self._futexWaiterPids.keys())
print "Futex Address,Holder,Waiters"
for addr in futexAddressSet:
print "{0},{1},{2}".format(addr,
self._futexHolderPid[addr] if addr in self._futexHolderPid else "Unknown",
self._futexWaiterPids[addr])
