зеркало из https://github.com/mozilla/gecko-dev.git
646 строки
23 KiB
Python
646 строки
23 KiB
Python
#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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from __future__ import with_statement
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import logging
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from operator import itemgetter
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import os
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import platform
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import re
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import signal
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import subprocess
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import sys
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import tempfile
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import mozinfo
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__all__ = [
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"dumpLeakLog",
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"processLeakLog",
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'systemMemory',
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'environment',
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'dumpScreen',
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"ShutdownLeaks",
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"setAutomationLog",
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]
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log = logging.getLogger()
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def resetGlobalLog():
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while log.handlers:
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log.removeHandler(log.handlers[0])
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handler = logging.StreamHandler(sys.stdout)
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log.setLevel(logging.INFO)
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log.addHandler(handler)
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resetGlobalLog()
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def setAutomationLog(alt_logger):
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global log
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log = alt_logger
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# Python does not provide strsignal() even in the very latest 3.x.
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# This is a reasonable fake.
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def strsig(n):
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# Signal numbers run 0 through NSIG-1; an array with NSIG members
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# has exactly that many slots
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_sigtbl = [None]*signal.NSIG
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for k in dir(signal):
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if k.startswith("SIG") and not k.startswith("SIG_") and k != "SIGCLD" and k != "SIGPOLL":
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_sigtbl[getattr(signal, k)] = k
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# Realtime signals mostly have no names
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if hasattr(signal, "SIGRTMIN") and hasattr(signal, "SIGRTMAX"):
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for r in range(signal.SIGRTMIN+1, signal.SIGRTMAX+1):
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_sigtbl[r] = "SIGRTMIN+" + str(r - signal.SIGRTMIN)
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# Fill in any remaining gaps
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for i in range(signal.NSIG):
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if _sigtbl[i] is None:
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_sigtbl[i] = "unrecognized signal, number " + str(i)
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if n < 0 or n >= signal.NSIG:
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return "out-of-range signal, number "+str(n)
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return _sigtbl[n]
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def printstatus(status, name = ""):
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# 'status' is the exit status
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if os.name != 'posix':
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# Windows error codes are easier to look up if printed in hexadecimal
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if status < 0:
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status += 2**32
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print "TEST-INFO | %s: exit status %x\n" % (name, status)
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elif os.WIFEXITED(status):
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print "TEST-INFO | %s: exit %d\n" % (name, os.WEXITSTATUS(status))
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elif os.WIFSIGNALED(status):
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# The python stdlib doesn't appear to have strsignal(), alas
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print "TEST-INFO | {}: killed by {}".format(name,strsig(os.WTERMSIG(status)))
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else:
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# This is probably a can't-happen condition on Unix, but let's be defensive
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print "TEST-INFO | %s: undecodable exit status %04x\n" % (name, status)
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def dumpLeakLog(leakLogFile, filter = False):
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"""Process the leak log, without parsing it.
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Use this function if you want the raw log only.
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Use it preferably with the |XPCOM_MEM_LEAK_LOG| environment variable.
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"""
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# Don't warn (nor "info") if the log file is not there.
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if not os.path.exists(leakLogFile):
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return
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with open(leakLogFile, "r") as leaks:
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leakReport = leaks.read()
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# Only |XPCOM_MEM_LEAK_LOG| reports can be actually filtered out.
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# Only check whether an actual leak was reported.
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if filter and not "0 TOTAL " in leakReport:
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return
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# Simply copy the log.
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log.info(leakReport.rstrip("\n"))
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def processSingleLeakFile(leakLogFileName, processType, leakThreshold, ignoreMissingLeaks):
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"""Process a single leak log.
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"""
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# Per-Inst Leaked Total Rem ...
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# 0 TOTAL 17 192 419115886 2 ...
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# 833 nsTimerImpl 60 120 24726 2 ...
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lineRe = re.compile(r"^\s*\d+\s+(?P<name>\S+)\s+"
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r"(?P<size>-?\d+)\s+(?P<bytesLeaked>-?\d+)\s+"
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r"-?\d+\s+(?P<numLeaked>-?\d+)")
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processString = "%s process:" % processType
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crashedOnPurpose = False
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totalBytesLeaked = None
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logAsWarning = False
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leakAnalysis = []
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leakedObjectAnalysis = []
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leakedObjectNames = []
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recordLeakedObjects = False
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with open(leakLogFileName, "r") as leaks:
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for line in leaks:
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if line.find("purposefully crash") > -1:
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crashedOnPurpose = True
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matches = lineRe.match(line)
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if not matches:
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# eg: the leak table header row
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log.info(line.rstrip())
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continue
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name = matches.group("name")
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size = int(matches.group("size"))
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bytesLeaked = int(matches.group("bytesLeaked"))
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numLeaked = int(matches.group("numLeaked"))
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# Output the raw line from the leak log table if it is the TOTAL row,
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# or is for an object row that has been leaked.
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if numLeaked != 0 or name == "TOTAL":
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log.info(line.rstrip())
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# Analyse the leak log, but output later or it will interrupt the leak table
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if name == "TOTAL":
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# Multiple default processes can end up writing their bloat views into a single
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# log, particularly on B2G. Eventually, these should be split into multiple
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# logs (bug 1068869), but for now, we report the largest leak.
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if totalBytesLeaked != None:
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leakAnalysis.append("WARNING | leakcheck | %s multiple BloatView byte totals found"
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% processString)
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else:
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totalBytesLeaked = 0
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if bytesLeaked > totalBytesLeaked:
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totalBytesLeaked = bytesLeaked
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# Throw out the information we had about the previous bloat view.
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leakedObjectNames = []
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leakedObjectAnalysis = []
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recordLeakedObjects = True
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else:
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recordLeakedObjects = False
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if size < 0 or bytesLeaked < 0 or numLeaked < 0:
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leakAnalysis.append("TEST-UNEXPECTED-FAIL | leakcheck | %s negative leaks caught!"
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% processString)
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logAsWarning = True
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continue
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if name != "TOTAL" and numLeaked != 0 and recordLeakedObjects:
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leakedObjectNames.append(name)
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leakedObjectAnalysis.append("TEST-INFO | leakcheck | %s leaked %d %s (%s bytes)"
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% (processString, numLeaked, name, bytesLeaked))
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leakAnalysis.extend(leakedObjectAnalysis)
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if logAsWarning:
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log.warning('\n'.join(leakAnalysis))
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else:
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log.info('\n'.join(leakAnalysis))
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logAsWarning = False
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if totalBytesLeaked is None:
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# We didn't see a line with name 'TOTAL'
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if crashedOnPurpose:
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log.info("TEST-INFO | leakcheck | %s deliberate crash and thus no leak log"
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% processString)
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elif ignoreMissingLeaks:
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log.info("TEST-INFO | leakcheck | %s ignoring missing output line for total leaks"
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% processString)
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else:
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log.info("TEST-UNEXPECTED-FAIL | leakcheck | %s missing output line for total leaks!"
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% processString)
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log.info("TEST-INFO | leakcheck | missing output line from log file %s"
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% leakLogFileName)
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return
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if totalBytesLeaked == 0:
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log.info("TEST-PASS | leakcheck | %s no leaks detected!" % processString)
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return
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# totalBytesLeaked was seen and is non-zero.
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if totalBytesLeaked > leakThreshold:
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logAsWarning = True
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# Fail the run if we're over the threshold (which defaults to 0)
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prefix = "TEST-UNEXPECTED-FAIL"
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else:
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prefix = "WARNING"
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# Create a comma delimited string of the first N leaked objects found,
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# to aid with bug summary matching in TBPL. Note: The order of the objects
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# had no significance (they're sorted alphabetically).
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maxSummaryObjects = 5
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leakedObjectSummary = ', '.join(leakedObjectNames[:maxSummaryObjects])
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if len(leakedObjectNames) > maxSummaryObjects:
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leakedObjectSummary += ', ...'
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if logAsWarning:
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log.warning("%s | leakcheck | %s %d bytes leaked (%s)"
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% (prefix, processString, totalBytesLeaked, leakedObjectSummary))
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else:
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log.info("%s | leakcheck | %s %d bytes leaked (%s)"
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% (prefix, processString, totalBytesLeaked, leakedObjectSummary))
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def processLeakLog(leakLogFile, options):
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"""Process the leak log, including separate leak logs created
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by child processes.
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Use this function if you want an additional PASS/FAIL summary.
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It must be used with the |XPCOM_MEM_BLOAT_LOG| environment variable.
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The base of leakLogFile for a non-default process needs to end with
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_proctype_pid12345.log
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"proctype" is a string denoting the type of the process, which should
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be the result of calling XRE_ChildProcessTypeToString(). 12345 is
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a series of digits that is the pid for the process. The .log is
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optional.
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All other file names are treated as being for default processes.
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The options argument is checked for two optional attributes,
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leakThresholds and ignoreMissingLeaks.
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leakThresholds should be a dict mapping process types to leak thresholds,
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in bytes. If a process type is not present in the dict the threshold
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will be 0.
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ignoreMissingLeaks should be a list of process types. If a process
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creates a leak log without a TOTAL, then we report an error if it isn't
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in the list ignoreMissingLeaks.
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"""
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if not os.path.exists(leakLogFile):
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log.info("WARNING | leakcheck | refcount logging is off, so leaks can't be detected!")
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return
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leakThresholds = getattr(options, 'leakThresholds', {})
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ignoreMissingLeaks = getattr(options, 'ignoreMissingLeaks', [])
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# This list is based on kGeckoProcessTypeString. ipdlunittest processes likely
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# are not going to produce leak logs we will ever see.
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knownProcessTypes = ["default", "plugin", "tab", "geckomediaplugin"]
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for processType in knownProcessTypes:
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log.info("TEST-INFO | leakcheck | %s process: leak threshold set at %d bytes"
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% (processType, leakThresholds.get(processType, 0)))
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for processType in leakThresholds:
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if not processType in knownProcessTypes:
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log.info("TEST-UNEXPECTED-FAIL | leakcheck | Unknown process type %s in leakThresholds"
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% processType)
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(leakLogFileDir, leakFileBase) = os.path.split(leakLogFile)
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if leakFileBase[-4:] == ".log":
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leakFileBase = leakFileBase[:-4]
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fileNameRegExp = re.compile(r"_([a-z]*)_pid\d*.log$")
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else:
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fileNameRegExp = re.compile(r"_([a-z]*)_pid\d*$")
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for fileName in os.listdir(leakLogFileDir):
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if fileName.find(leakFileBase) != -1:
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thisFile = os.path.join(leakLogFileDir, fileName)
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m = fileNameRegExp.search(fileName)
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if m:
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processType = m.group(1)
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else:
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processType = "default"
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if not processType in knownProcessTypes:
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log.info("TEST-UNEXPECTED-FAIL | leakcheck | Leak log with unknown process type %s"
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% processType)
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leakThreshold = leakThresholds.get(processType, 0)
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processSingleLeakFile(thisFile, processType, leakThreshold,
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processType in ignoreMissingLeaks)
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def systemMemory():
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"""
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Returns total system memory in kilobytes.
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Works only on unix-like platforms where `free` is in the path.
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"""
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return int(os.popen("free").readlines()[1].split()[1])
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def environment(xrePath, env=None, crashreporter=True, debugger=False, dmdPath=None, lsanPath=None):
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"""populate OS environment variables for mochitest"""
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env = os.environ.copy() if env is None else env
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assert os.path.isabs(xrePath)
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if mozinfo.isMac:
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ldLibraryPath = os.path.join(os.path.dirname(xrePath), "MacOS")
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else:
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ldLibraryPath = xrePath
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envVar = None
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dmdLibrary = None
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preloadEnvVar = None
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if 'toolkit' in mozinfo.info and mozinfo.info['toolkit'] == "gonk":
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# Skip all of this, it's only valid for the host.
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pass
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elif mozinfo.isUnix:
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envVar = "LD_LIBRARY_PATH"
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env['MOZILLA_FIVE_HOME'] = xrePath
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dmdLibrary = "libdmd.so"
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preloadEnvVar = "LD_PRELOAD"
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elif mozinfo.isMac:
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envVar = "DYLD_LIBRARY_PATH"
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dmdLibrary = "libdmd.dylib"
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preloadEnvVar = "DYLD_INSERT_LIBRARIES"
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elif mozinfo.isWin:
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envVar = "PATH"
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dmdLibrary = "dmd.dll"
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preloadEnvVar = "MOZ_REPLACE_MALLOC_LIB"
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if envVar:
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envValue = ((env.get(envVar), str(ldLibraryPath))
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if mozinfo.isWin
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else (ldLibraryPath, dmdPath, env.get(envVar)))
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env[envVar] = os.path.pathsep.join([path for path in envValue if path])
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if dmdPath and dmdLibrary and preloadEnvVar:
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env[preloadEnvVar] = os.path.join(dmdPath, dmdLibrary)
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# crashreporter
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env['GNOME_DISABLE_CRASH_DIALOG'] = '1'
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env['XRE_NO_WINDOWS_CRASH_DIALOG'] = '1'
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env['NS_TRACE_MALLOC_DISABLE_STACKS'] = '1'
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if crashreporter and not debugger:
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env['MOZ_CRASHREPORTER_NO_REPORT'] = '1'
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env['MOZ_CRASHREPORTER'] = '1'
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else:
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env['MOZ_CRASHREPORTER_DISABLE'] = '1'
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# Crash on non-local network connections by default.
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# MOZ_DISABLE_NONLOCAL_CONNECTIONS can be set to "0" to temporarily
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# enable non-local connections for the purposes of local testing. Don't
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# override the user's choice here. See bug 1049688.
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env.setdefault('MOZ_DISABLE_NONLOCAL_CONNECTIONS', '1')
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# Set WebRTC logging in case it is not set yet
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env.setdefault('NSPR_LOG_MODULES', 'signaling:5,mtransport:5,datachannel:5,jsep:5,MediaPipelineFactory:5')
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env.setdefault('R_LOG_LEVEL', '6')
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env.setdefault('R_LOG_DESTINATION', 'stderr')
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env.setdefault('R_LOG_VERBOSE', '1')
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# ASan specific environment stuff
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asan = bool(mozinfo.info.get("asan"))
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if asan and (mozinfo.isLinux or mozinfo.isMac):
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try:
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# Symbolizer support
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llvmsym = os.path.join(xrePath, "llvm-symbolizer")
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if os.path.isfile(llvmsym):
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env["ASAN_SYMBOLIZER_PATH"] = llvmsym
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log.info("INFO | runtests.py | ASan using symbolizer at %s" % llvmsym)
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else:
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log.info("TEST-UNEXPECTED-FAIL | runtests.py | Failed to find ASan symbolizer at %s" % llvmsym)
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totalMemory = systemMemory()
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# Only 4 GB RAM or less available? Use custom ASan options to reduce
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# the amount of resources required to do the tests. Standard options
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# will otherwise lead to OOM conditions on the current test slaves.
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message = "INFO | runtests.py | ASan running in %s configuration"
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asanOptions = []
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if totalMemory <= 1024 * 1024 * 4:
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message = message % 'low-memory'
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asanOptions = ['quarantine_size=50331648', 'malloc_context_size=5']
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else:
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message = message % 'default memory'
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if lsanPath:
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log.info("LSan enabled.")
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asanOptions.append('detect_leaks=1')
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lsanOptions = ["exitcode=0"]
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suppressionsFile = os.path.join(lsanPath, 'lsan_suppressions.txt')
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if os.path.exists(suppressionsFile):
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log.info("LSan using suppression file " + suppressionsFile)
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lsanOptions.append("suppressions=" + suppressionsFile)
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else:
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log.info("WARNING | runtests.py | LSan suppressions file does not exist! " + suppressionsFile)
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env["LSAN_OPTIONS"] = ':'.join(lsanOptions)
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# Run shutdown GCs and CCs to avoid spurious leaks.
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env['MOZ_CC_RUN_DURING_SHUTDOWN'] = '1'
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if len(asanOptions):
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env['ASAN_OPTIONS'] = ':'.join(asanOptions)
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except OSError,err:
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log.info("Failed determine available memory, disabling ASan low-memory configuration: %s" % err.strerror)
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except:
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log.info("Failed determine available memory, disabling ASan low-memory configuration")
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else:
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log.info(message)
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return env
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def dumpScreen(utilityPath):
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"""dumps a screenshot of the entire screen to a directory specified by
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the MOZ_UPLOAD_DIR environment variable"""
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# Need to figure out which OS-dependent tool to use
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if mozinfo.isUnix:
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utility = [os.path.join(utilityPath, "screentopng")]
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utilityname = "screentopng"
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elif mozinfo.isMac:
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utility = ['/usr/sbin/screencapture', '-C', '-x', '-t', 'png']
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utilityname = "screencapture"
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elif mozinfo.isWin:
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utility = [os.path.join(utilityPath, "screenshot.exe")]
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utilityname = "screenshot"
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# Get dir where to write the screenshot file
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parent_dir = os.environ.get('MOZ_UPLOAD_DIR', None)
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if not parent_dir:
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log.info('Failed to retrieve MOZ_UPLOAD_DIR env var')
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return
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# Run the capture
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try:
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tmpfd, imgfilename = tempfile.mkstemp(prefix='mozilla-test-fail-screenshot_', suffix='.png', dir=parent_dir)
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os.close(tmpfd)
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returncode = subprocess.call(utility + [imgfilename])
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printstatus(returncode, utilityname)
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except OSError, err:
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log.info("Failed to start %s for screenshot: %s" %
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utility[0], err.strerror)
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return
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class ShutdownLeaks(object):
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"""
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Parses the mochitest run log when running a debug build, assigns all leaked
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DOM windows (that are still around after test suite shutdown, despite running
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the GC) to the tests that created them and prints leak statistics.
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"""
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def __init__(self, logger):
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self.logger = logger
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self.tests = []
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self.leakedWindows = {}
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self.leakedDocShells = set()
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self.currentTest = None
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self.seenShutdown = False
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def log(self, message):
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if message['action'] == 'log':
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line = message['message']
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if line[2:11] == "DOMWINDOW":
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self._logWindow(line)
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elif line[2:10] == "DOCSHELL":
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self._logDocShell(line)
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elif line.startswith("TEST-START | Shutdown"):
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self.seenShutdown = True
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elif message['action'] == 'test_start':
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fileName = message['test'].replace("chrome://mochitests/content/browser/", "")
|
|
self.currentTest = {"fileName": fileName, "windows": set(), "docShells": set()}
|
|
elif message['action'] == 'test_end':
|
|
# don't track a test if no windows or docShells leaked
|
|
if self.currentTest and (self.currentTest["windows"] or self.currentTest["docShells"]):
|
|
self.tests.append(self.currentTest)
|
|
self.currentTest = None
|
|
|
|
def process(self):
|
|
if not self.seenShutdown:
|
|
self.logger.warning("TEST-UNEXPECTED-FAIL | ShutdownLeaks | process() called before end of test suite")
|
|
|
|
for test in self._parseLeakingTests():
|
|
for url, count in self._zipLeakedWindows(test["leakedWindows"]):
|
|
self.logger.warning("TEST-UNEXPECTED-FAIL | %s | leaked %d window(s) until shutdown [url = %s]" % (test["fileName"], count, url))
|
|
|
|
if test["leakedDocShells"]:
|
|
self.logger.warning("TEST-UNEXPECTED-FAIL | %s | leaked %d docShell(s) until shutdown" % (test["fileName"], len(test["leakedDocShells"])))
|
|
|
|
def _logWindow(self, line):
|
|
created = line[:2] == "++"
|
|
pid = self._parseValue(line, "pid")
|
|
serial = self._parseValue(line, "serial")
|
|
|
|
# log line has invalid format
|
|
if not pid or not serial:
|
|
self.logger.warning("TEST-UNEXPECTED-FAIL | ShutdownLeaks | failed to parse line <%s>" % line)
|
|
return
|
|
|
|
key = pid + "." + serial
|
|
|
|
if self.currentTest:
|
|
windows = self.currentTest["windows"]
|
|
if created:
|
|
windows.add(key)
|
|
else:
|
|
windows.discard(key)
|
|
elif self.seenShutdown and not created:
|
|
self.leakedWindows[key] = self._parseValue(line, "url")
|
|
|
|
def _logDocShell(self, line):
|
|
created = line[:2] == "++"
|
|
pid = self._parseValue(line, "pid")
|
|
id = self._parseValue(line, "id")
|
|
|
|
# log line has invalid format
|
|
if not pid or not id:
|
|
self.logger.warning("TEST-UNEXPECTED-FAIL | ShutdownLeaks | failed to parse line <%s>" % line)
|
|
return
|
|
|
|
key = pid + "." + id
|
|
|
|
if self.currentTest:
|
|
docShells = self.currentTest["docShells"]
|
|
if created:
|
|
docShells.add(key)
|
|
else:
|
|
docShells.discard(key)
|
|
elif self.seenShutdown and not created:
|
|
self.leakedDocShells.add(key)
|
|
|
|
def _parseValue(self, line, name):
|
|
match = re.search("\[%s = (.+?)\]" % name, line)
|
|
if match:
|
|
return match.group(1)
|
|
return None
|
|
|
|
def _parseLeakingTests(self):
|
|
leakingTests = []
|
|
|
|
for test in self.tests:
|
|
test["leakedWindows"] = [self.leakedWindows[id] for id in test["windows"] if id in self.leakedWindows]
|
|
test["leakedDocShells"] = [id for id in test["docShells"] if id in self.leakedDocShells]
|
|
test["leakCount"] = len(test["leakedWindows"]) + len(test["leakedDocShells"])
|
|
|
|
if test["leakCount"]:
|
|
leakingTests.append(test)
|
|
|
|
return sorted(leakingTests, key=itemgetter("leakCount"), reverse=True)
|
|
|
|
def _zipLeakedWindows(self, leakedWindows):
|
|
counts = []
|
|
counted = set()
|
|
|
|
for url in leakedWindows:
|
|
if not url in counted:
|
|
counts.append((url, leakedWindows.count(url)))
|
|
counted.add(url)
|
|
|
|
return sorted(counts, key=itemgetter(1), reverse=True)
|
|
|
|
|
|
class LSANLeaks(object):
|
|
"""
|
|
Parses the log when running an LSAN build, looking for interesting stack frames
|
|
in allocation stacks, and prints out reports.
|
|
"""
|
|
|
|
def __init__(self, logger):
|
|
self.logger = logger
|
|
self.inReport = False
|
|
self.foundFrames = set([])
|
|
self.recordMoreFrames = None
|
|
self.currStack = None
|
|
self.maxNumRecordedFrames = 4
|
|
|
|
# Don't various allocation-related stack frames, as they do not help much to
|
|
# distinguish different leaks.
|
|
unescapedSkipList = [
|
|
"malloc", "js_malloc", "malloc_", "__interceptor_malloc", "moz_malloc", "moz_xmalloc",
|
|
"calloc", "js_calloc", "calloc_", "__interceptor_calloc", "moz_calloc", "moz_xcalloc",
|
|
"realloc","js_realloc", "realloc_", "__interceptor_realloc", "moz_realloc", "moz_xrealloc",
|
|
"new",
|
|
"js::MallocProvider",
|
|
]
|
|
self.skipListRegExp = re.compile("^" + "|".join([re.escape(f) for f in unescapedSkipList]) + "$")
|
|
|
|
self.startRegExp = re.compile("==\d+==ERROR: LeakSanitizer: detected memory leaks")
|
|
self.stackFrameRegExp = re.compile(" #\d+ 0x[0-9a-f]+ in ([^(</]+)")
|
|
self.sysLibStackFrameRegExp = re.compile(" #\d+ 0x[0-9a-f]+ \(([^+]+)\+0x[0-9a-f]+\)")
|
|
|
|
|
|
def log(self, line):
|
|
if re.match(self.startRegExp, line):
|
|
self.inReport = True
|
|
return
|
|
|
|
if not self.inReport:
|
|
return
|
|
|
|
if line.startswith("Direct leak"):
|
|
self._finishStack()
|
|
self.recordMoreFrames = True
|
|
self.currStack = []
|
|
return
|
|
|
|
if line.startswith("Indirect leak"):
|
|
self._finishStack()
|
|
# Only report direct leaks, in the hope that they are less flaky.
|
|
self.recordMoreFrames = False
|
|
return
|
|
|
|
if line.startswith("SUMMARY: AddressSanitizer"):
|
|
self._finishStack()
|
|
self.inReport = False
|
|
return
|
|
|
|
if not self.recordMoreFrames:
|
|
return
|
|
|
|
stackFrame = re.match(self.stackFrameRegExp, line)
|
|
if stackFrame:
|
|
# Split the frame to remove any return types.
|
|
frame = stackFrame.group(1).split()[-1]
|
|
if not re.match(self.skipListRegExp, frame):
|
|
self._recordFrame(frame)
|
|
return
|
|
|
|
sysLibStackFrame = re.match(self.sysLibStackFrameRegExp, line)
|
|
if sysLibStackFrame:
|
|
# System library stack frames will never match the skip list,
|
|
# so don't bother checking if they do.
|
|
self._recordFrame(sysLibStackFrame.group(1))
|
|
|
|
# If we don't match either of these, just ignore the frame.
|
|
# We'll end up with "unknown stack" if everything is ignored.
|
|
|
|
def process(self):
|
|
for f in self.foundFrames:
|
|
self.logger.warning("TEST-UNEXPECTED-FAIL | LeakSanitizer | leak at " + f)
|
|
|
|
def _finishStack(self):
|
|
if self.recordMoreFrames and len(self.currStack) == 0:
|
|
self.currStack = ["unknown stack"]
|
|
if self.currStack:
|
|
self.foundFrames.add(", ".join(self.currStack))
|
|
self.currStack = None
|
|
self.recordMoreFrames = False
|
|
self.numRecordedFrames = 0
|
|
|
|
def _recordFrame(self, frame):
|
|
self.currStack.append(frame)
|
|
self.numRecordedFrames += 1
|
|
if self.numRecordedFrames >= self.maxNumRecordedFrames:
|
|
self.recordMoreFrames = False
|