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#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
from __future__ import with_statement
import glob, logging, os, platform, shutil, subprocess, sys, tempfile, urllib2, zipfile
import re
from urlparse import urlparse
from operator import itemgetter
__all__ = [
"ZipFileReader",
"addCommonOptions",
"checkForCrashes",
"dumpLeakLog",
"isURL",
"processLeakLog",
"getDebuggerInfo",
"DEBUGGER_INFO",
"replaceBackSlashes",
"wrapCommand",
"ShutdownLeakLogger"
]
# Map of debugging programs to information about them, like default arguments
# and whether or not they are interactive.
DEBUGGER_INFO = {
# gdb requires that you supply the '--args' flag in order to pass arguments
# after the executable name to the executable.
"gdb": {
"interactive": True,
"args": "-q --args"
},
# valgrind doesn't explain much about leaks unless you set the
# '--leak-check=full' flag.
"valgrind": {
"interactive": False,
"args": "--leak-check=full"
}
}
class ZipFileReader(object):
"""
Class to read zip files in Python 2.5 and later. Limited to only what we
actually use.
"""
def __init__(self, filename):
self._zipfile = zipfile.ZipFile(filename, "r")
def __del__(self):
self._zipfile.close()
def _getnormalizedpath(self, path):
"""
Gets a normalized path from 'path' (or the current working directory if
'path' is None). Also asserts that the path exists.
"""
if path is None:
path = os.curdir
path = os.path.normpath(os.path.expanduser(path))
assert os.path.isdir(path)
return path
def _extractname(self, name, path):
"""
Extracts a file with the given name from the zip file to the given path.
Also creates any directories needed along the way.
"""
filename = os.path.normpath(os.path.join(path, name))
if name.endswith("/"):
os.makedirs(filename)
else:
path = os.path.split(filename)[0]
if not os.path.isdir(path):
os.makedirs(path)
with open(filename, "wb") as dest:
dest.write(self._zipfile.read(name))
def namelist(self):
return self._zipfile.namelist()
def read(self, name):
return self._zipfile.read(name)
def extract(self, name, path = None):
if hasattr(self._zipfile, "extract"):
return self._zipfile.extract(name, path)
# This will throw if name is not part of the zip file.
self._zipfile.getinfo(name)
self._extractname(name, self._getnormalizedpath(path))
def extractall(self, path = None):
if hasattr(self._zipfile, "extractall"):
return self._zipfile.extractall(path)
path = self._getnormalizedpath(path)
for name in self._zipfile.namelist():
self._extractname(name, path)
log = logging.getLogger()
def isURL(thing):
"""Return True if |thing| looks like a URL."""
# We want to download URLs like http://... but not Windows paths like c:\...
return len(urlparse(thing).scheme) >= 2
def addCommonOptions(parser, defaults={}):
parser.add_option("--xre-path",
action = "store", type = "string", dest = "xrePath",
# individual scripts will set a sane default
default = None,
help = "absolute path to directory containing XRE (probably xulrunner)")
if 'SYMBOLS_PATH' not in defaults:
defaults['SYMBOLS_PATH'] = None
parser.add_option("--symbols-path",
action = "store", type = "string", dest = "symbolsPath",
default = defaults['SYMBOLS_PATH'],
help = "absolute path to directory containing breakpad symbols, or the URL of a zip file containing symbols")
parser.add_option("--debugger",
action = "store", dest = "debugger",
help = "use the given debugger to launch the application")
parser.add_option("--debugger-args",
action = "store", dest = "debuggerArgs",
help = "pass the given args to the debugger _before_ "
"the application on the command line")
parser.add_option("--debugger-interactive",
action = "store_true", dest = "debuggerInteractive",
help = "prevents the test harness from redirecting "
"stdout and stderr for interactive debuggers")
def checkForCrashes(dumpDir, symbolsPath, testName=None):
stackwalkPath = os.environ.get('MINIDUMP_STACKWALK', None)
# try to get the caller's filename if no test name is given
if testName is None:
try:
testName = os.path.basename(sys._getframe(1).f_code.co_filename)
except:
testName = "unknown"
# Check preconditions
dumps = glob.glob(os.path.join(dumpDir, '*.dmp'))
if len(dumps) == 0:
return False
foundCrash = False
removeSymbolsPath = False
# If our symbols are at a remote URL, download them now
if isURL(symbolsPath):
print "Downloading symbols from: " + symbolsPath
removeSymbolsPath = True
# Get the symbols and write them to a temporary zipfile
data = urllib2.urlopen(symbolsPath)
symbolsFile = tempfile.TemporaryFile()
symbolsFile.write(data.read())
# extract symbols to a temporary directory (which we'll delete after
# processing all crashes)
symbolsPath = tempfile.mkdtemp()
zfile = ZipFileReader(symbolsFile)
zfile.extractall(symbolsPath)
try:
for d in dumps:
log.info("PROCESS-CRASH | %s | application crashed (minidump found)", testName)
print "Crash dump filename: " + d
if symbolsPath and stackwalkPath and os.path.exists(stackwalkPath):
# run minidump stackwalk
p = subprocess.Popen([stackwalkPath, d, symbolsPath],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
(out, err) = p.communicate()
if len(out) > 3:
# minidump_stackwalk is chatty, so ignore stderr when it succeeds.
print out
else:
print "stderr from minidump_stackwalk:"
print err
if p.returncode != 0:
print "minidump_stackwalk exited with return code %d" % p.returncode
else:
if not symbolsPath:
print "No symbols path given, can't process dump."
if not stackwalkPath:
print "MINIDUMP_STACKWALK not set, can't process dump."
elif stackwalkPath and not os.path.exists(stackwalkPath):
print "MINIDUMP_STACKWALK binary not found: %s" % stackwalkPath
dumpSavePath = os.environ.get('MINIDUMP_SAVE_PATH', None)
if dumpSavePath:
shutil.move(d, dumpSavePath)
print "Saved dump as %s" % os.path.join(dumpSavePath,
os.path.basename(d))
else:
os.remove(d)
extra = os.path.splitext(d)[0] + ".extra"
if os.path.exists(extra):
os.remove(extra)
foundCrash = True
finally:
if removeSymbolsPath:
shutil.rmtree(symbolsPath)
return foundCrash
def getFullPath(directory, path):
"Get an absolute path relative to 'directory'."
return os.path.normpath(os.path.join(directory, os.path.expanduser(path)))
def searchPath(directory, path):
"Go one step beyond getFullPath and try the various folders in PATH"
# Try looking in the current working directory first.
newpath = getFullPath(directory, path)
if os.path.isfile(newpath):
return newpath
# At this point we have to fail if a directory was given (to prevent cases
# like './gdb' from matching '/usr/bin/./gdb').
if not os.path.dirname(path):
for dir in os.environ['PATH'].split(os.pathsep):
newpath = os.path.join(dir, path)
if os.path.isfile(newpath):
return newpath
return None
def getDebuggerInfo(directory, debugger, debuggerArgs, debuggerInteractive = False):
debuggerInfo = None
if debugger:
debuggerPath = searchPath(directory, debugger)
if not debuggerPath:
print "Error: Path %s doesn't exist." % debugger
sys.exit(1)
debuggerName = os.path.basename(debuggerPath).lower()
def getDebuggerInfo(type, default):
if debuggerName in DEBUGGER_INFO and type in DEBUGGER_INFO[debuggerName]:
return DEBUGGER_INFO[debuggerName][type]
return default
debuggerInfo = {
"path": debuggerPath,
"interactive" : getDebuggerInfo("interactive", False),
"args": getDebuggerInfo("args", "").split()
}
if debuggerArgs:
debuggerInfo["args"] = debuggerArgs.split()
if debuggerInteractive:
debuggerInfo["interactive"] = debuggerInteractive
return debuggerInfo
def dumpLeakLog(leakLogFile, filter = False):
"""Process the leak log, without parsing it.
Use this function if you want the raw log only.
Use it preferably with the |XPCOM_MEM_LEAK_LOG| environment variable.
"""
# Don't warn (nor "info") if the log file is not there.
if not os.path.exists(leakLogFile):
return
leaks = open(leakLogFile, "r")
leakReport = leaks.read()
leaks.close()
# Only |XPCOM_MEM_LEAK_LOG| reports can be actually filtered out.
# Only check whether an actual leak was reported.
if filter and not "0 TOTAL " in leakReport:
return
# Simply copy the log.
log.info(leakReport.rstrip("\n"))
def processSingleLeakFile(leakLogFileName, PID, processType, leakThreshold):
"""Process a single leak log, corresponding to the specified
process PID and type.
"""
# Per-Inst Leaked Total Rem ...
# 0 TOTAL 17 192 419115886 2 ...
# 833 nsTimerImpl 60 120 24726 2 ...
lineRe = re.compile(r"^\s*\d+\s+(?P<name>\S+)\s+"
r"(?P<size>-?\d+)\s+(?P<bytesLeaked>-?\d+)\s+"
r"-?\d+\s+(?P<numLeaked>-?\d+)")
processString = ""
if PID and processType:
processString = "| %s process %s " % (processType, PID)
leaks = open(leakLogFileName, "r")
for line in leaks:
matches = lineRe.match(line)
if (matches and
int(matches.group("numLeaked")) == 0 and
matches.group("name") != "TOTAL"):
continue
log.info(line.rstrip())
leaks.close()
leaks = open(leakLogFileName, "r")
seenTotal = False
crashedOnPurpose = False
prefix = "TEST-PASS"
numObjects = 0
for line in leaks:
if line.find("purposefully crash") > -1:
crashedOnPurpose = True
matches = lineRe.match(line)
if not matches:
continue
name = matches.group("name")
size = int(matches.group("size"))
bytesLeaked = int(matches.group("bytesLeaked"))
numLeaked = int(matches.group("numLeaked"))
if size < 0 or bytesLeaked < 0 or numLeaked < 0:
log.info("TEST-UNEXPECTED-FAIL %s| automationutils.processLeakLog() | negative leaks caught!" %
processString)
if name == "TOTAL":
seenTotal = True
elif name == "TOTAL":
seenTotal = True
# Check for leaks.
if bytesLeaked < 0 or bytesLeaked > leakThreshold:
prefix = "TEST-UNEXPECTED-FAIL"
leakLog = "TEST-UNEXPECTED-FAIL %s| automationutils.processLeakLog() | leaked" \
" %d bytes during test execution" % (processString, bytesLeaked)
elif bytesLeaked > 0:
leakLog = "TEST-PASS %s| automationutils.processLeakLog() | WARNING leaked" \
" %d bytes during test execution" % (processString, bytesLeaked)
else:
leakLog = "TEST-PASS %s| automationutils.processLeakLog() | no leaks detected!" \
% processString
# Remind the threshold if it is not 0, which is the default/goal.
if leakThreshold != 0:
leakLog += " (threshold set at %d bytes)" % leakThreshold
# Log the information.
log.info(leakLog)
else:
if numLeaked != 0:
if numLeaked > 1:
instance = "instances"
rest = " each (%s bytes total)" % matches.group("bytesLeaked")
else:
instance = "instance"
rest = ""
numObjects += 1
if numObjects > 5:
# don't spam brief tinderbox logs with tons of leak output
prefix = "TEST-INFO"
log.info("%(prefix)s %(process)s| automationutils.processLeakLog() | leaked %(numLeaked)d %(instance)s of %(name)s "
"with size %(size)s bytes%(rest)s" %
{ "prefix": prefix,
"process": processString,
"numLeaked": numLeaked,
"instance": instance,
"name": name,
"size": matches.group("size"),
"rest": rest })
if not seenTotal:
if crashedOnPurpose:
log.info("INFO | automationutils.processLeakLog() | process %s was " \
"deliberately crashed and thus has no leak log" % PID)
else:
log.info("TEST-UNEXPECTED-FAIL %s| automationutils.processLeakLog() | missing output line for total leaks!" %
processString)
leaks.close()
def processLeakLog(leakLogFile, leakThreshold = 0):
"""Process the leak log, including separate leak logs created
by child processes.
Use this function if you want an additional PASS/FAIL summary.
It must be used with the |XPCOM_MEM_BLOAT_LOG| environment variable.
"""
if not os.path.exists(leakLogFile):
log.info("WARNING | automationutils.processLeakLog() | refcount logging is off, so leaks can't be detected!")
return
(leakLogFileDir, leakFileBase) = os.path.split(leakLogFile)
pidRegExp = re.compile(r".*?_([a-z]*)_pid(\d*)$")
if leakFileBase[-4:] == ".log":
leakFileBase = leakFileBase[:-4]
pidRegExp = re.compile(r".*?_([a-z]*)_pid(\d*).log$")
for fileName in os.listdir(leakLogFileDir):
if fileName.find(leakFileBase) != -1:
thisFile = os.path.join(leakLogFileDir, fileName)
processPID = 0
processType = None
m = pidRegExp.search(fileName)
if m:
processType = m.group(1)
processPID = m.group(2)
processSingleLeakFile(thisFile, processPID, processType, leakThreshold)
def replaceBackSlashes(input):
return input.replace('\\', '/')
def wrapCommand(cmd):
"""
If running on OS X 10.5 or older, wrap |cmd| so that it will
be executed as an i386 binary, in case it's a 32-bit/64-bit universal
binary.
"""
if platform.system() == "Darwin" and \
hasattr(platform, 'mac_ver') and \
platform.mac_ver()[0][:4] < '10.6':
return ["arch", "-arch", "i386"] + cmd
# otherwise just execute the command normally
return cmd
class ShutdownLeakLogger(object):
"""
Parses the mochitest run log when running a debug build, assigns all leaked
DOM windows (that are still around after test suite shutdown, despite running
the GC) to the tests that created them and prints leak statistics.
"""
MAX_LEAK_COUNT = 7
def __init__(self, logger):
self.logger = logger
self.tests = []
self.leakedWindows = {}
self.leakedDocShells = set()
self.currentTest = None
self.seenShutdown = False
def log(self, line):
if line[2:11] == "DOMWINDOW":
self._logWindow(line)
elif line[2:10] == "DOCSHELL":
self._logDocShell(line)
elif line.startswith("TEST-START"):
fileName = line.split(" ")[-1].strip().replace("chrome://mochitests/content/browser/", "")
self.currentTest = {"fileName": fileName, "windows": set(), "docShells": set()}
elif line.startswith("INFO 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
elif line.startswith("INFO TEST-START | Shutdown"):
self.seenShutdown = True
def parse(self):
leakingTests = self._parseLeakingTests()
if leakingTests:
totalWindows = sum(len(test["leakedWindows"]) for test in leakingTests)
totalDocShells = sum(len(test["leakedDocShells"]) for test in leakingTests)
msgType = "INFO" if totalWindows + totalDocShells <= self.MAX_LEAK_COUNT else "UNEXPECTED-FAIL"
self.logger.info("TEST-%s | ShutdownLeaks | leaked %d DOMWindow(s) and %d DocShell(s) until shutdown", msgType, totalWindows, totalDocShells)
for test in leakingTests:
self.logger.info("\n[%s]", test["fileName"])
for url, count in self._zipLeakedWindows(test["leakedWindows"]):
self.logger.info(" %d window(s) [url = %s]", count, url)
if test["leakedDocShells"]:
self.logger.info(" %d docShell(s)", len(test["leakedDocShells"]))
def _logWindow(self, line):
created = line[:2] == "++"
id = self._parseValue(line, "serial")
# log line has invalid format
if not id:
return
if self.currentTest:
windows = self.currentTest["windows"]
if created:
windows.add(id)
else:
windows.discard(id)
elif self.seenShutdown and not created:
self.leakedWindows[id] = self._parseValue(line, "url")
def _logDocShell(self, line):
created = line[:2] == "++"
id = self._parseValue(line, "id")
# log line has invalid format
if not id:
return
if self.currentTest:
docShells = self.currentTest["docShells"]
if created:
docShells.add(id)
else:
docShells.discard(id)
elif self.seenShutdown and not created:
self.leakedDocShells.add(id)
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)
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